Below are listed the numbers of engineers in various fields by sex. Choose one engineer at random. MechanicalElectricalBiomedicalMale9,6014,3576,318Female2,0391,1815,168 1. Find P("Electrical") 2. Find P("Male")3. Find P ("Electrical and Male")4. Find P ("Electrical" | "Male")5. Based on 1., 2. , 3., 4. are the events "Electrical" and "Male" independent? Why?Hint: Two events A and B are independent if and only if a) P (A and B ) = P(A)P(B) orb) P (A | B) = P (A)

Below Are Listed The Numbers Of Engineers In Various Fields By Sex. Choose One Engineer At Random. MechanicalElectricalBiomedicalMale9,6014,3576,318Female2,0391,1815,168

Answers

Answer 1

Recall the formula for the probability of an event:

\(P=\frac{Number\text{ of favorable outcomes}}{\text{Total number of outcomes}}\)

From the given data, the total number of engineers is:

\(9601+4357+6318+2039+1181+5168=28664\)

It follows that the probability P(Electrical) is:

\(P(Electrical)=\frac{\text{Number of electrical engineers}}{Total\text{ number of engineers}}\)

The number of electrical engineers is:

\(4357+1181=5538\)

Substitute into the probability:

\(P(\text{Electrical)}=\frac{5538}{28664}=\frac{2769}{14332}\)

The probability P(Male) from the probability formula is:

\(P(\text{Male)}=\frac{\text{Number of Male engineers}}{\text{Total number of engineers}}\)

The Number of male engineers is:

\(9601+4357+6318=20276\)

Substitute into the probability:

\(P(\text{Male)}=\frac{20276}{28664}=\frac{5069}{7166}\)

The probability P(Electrical and male) is:

\(P(\text{Electrical and Male)}=\frac{Number\text{ of male electrical engineers}}{\text{Total number of engineers}}\)

The number of electrical engineers who are male is 4357.

Hence, the probability is:

\(P(\text{Electrical and male)}=\frac{4357}{28664}\)

The formula for conditional probability is given as:

\(P(A|B)=\frac{P(A\; \text{and }B)}{P(B)}\)

It follows that:

\(P(\text{Electrical}|\text{Male)}=\frac{P(\text{Electrical and male)}}{P(Male)}\)

Substitute the calculated probabilities:

\(\begin{gathered} P(\text{Electrical}|\text{male)}=\frac{\frac{4357}{28664}}{\frac{20276}{28664}}=\frac{4357}{28664}\div\frac{20276}{28664}=\frac{4357}{28664}\times\frac{28664}{20276}=\frac{4357}{20276} \\ \end{gathered}\)

Based on the calculated probabilities in 1-4, it can be seen that the probabilities P(Electrical and male) ≠ P(Electrical) P(Male), also P(Electrical | male) ≠ P(electrical).

From the definitions given in the hint, it can be inferred that the events "Electrical" and "Male" are not independent.

The events "Electrical" and "Male" are not independent, because:

P(Electrical and male) ≠ P(Electrical) P(Male) and P(Electrical | male) ≠ P(electrical).


Related Questions

Hospital waiting room times are normally distributed with a mean of 38.12 minutes and a standard deviation of 8.63 minutes. What is the shortest wait time that would still be in the worst 5% of wait times? Homework Help: 4VE. Determining values from normal distributions based on probabilities (Links to an external site.) (2:42) 4DC. Using normal distributions and probabilities to determine set values DOCX Group of answer choices 29.49 minutes 52.32 minutes 23.92 minutes 46.75 minutes

Answers

Answer:

Step-by-step explanation:

waiting times follow a normal distribution with

Mean, \mu=38.12Mean,μ=38.12

Standard\ deviation,\sigma=8.63Standard deviation,σ=8.63

Longer waiting times are worse than shorter waiting times. Hence the worst 20% of wait times are wait times on the right tail of the distribution. The inferred level of confidence is 0.80.

The z value corresponding to the right tail probability of 0.2 is

Z=0.85Z=0.85

But

Z = \frac{x-\mu}{\sigma}Z=

σ

x−μ

x =Z*\sigma +\mux=Z∗σ+μ

=0.85 * 8.63 +38.12 =45.4555=0.85∗8.63+38.12=45.4555

answer:

the shortest wait time that would still be in the worst 20% of wait times is 45.4555 minutes

Translate each phrase into an algebraic expression.

the number of minutes in any number of hours
Question 8 options:
60 ÷ x
60 + x
60x
x – 60

Answers

Answer:

The answer is the third option;60x

Answer:

3rd

Step-by-step explanation:

because of means multiply and minutes 60 so 60 ×x

hope you understand please give brainliest plz

I Need help with these please

I Need help with these please

Answers

9514 1404 393

Answer:

  5.  (d) 8

  6.  (c) 120°

Step-by-step explanation:

5. OC is a radius, just like BO is. The angle at B is a right angle, so the Pythagorean theorem can be used to find BO.

  AO² = BO² +BA²

  BO² = AO² -BA² = 17² -15² = 289 -225 = 64

  BO = CO = √64 = 8

__

6. The measure of arc IK is the same as the measure of the central angle. If we name the circle center X, then arc IK = ∠IXK = ∠HXL because those angles are vertical angles.

  arc IK = 120°

..................Hot Cheetos...................

Answers

Answer:

I like lots of chips!

Step-by-step explanation:

Carries first three children were boys. If she has more children, they will all be boys. Is this deductive or inductive reasoning?

Answers

Answer:

Inductive reasoning

Step-by-step explanation:

Inductive reasoning is when you make a false assumption based on previous knowledge you had before. The previous fact will often be referring to just a certain amount/set of things.

Deductive reasoning is when you have previous knowledge and you make a claim that is correct based on the knowledge before. The previous fact will often be referring to a whole set of things, not limited to a certain number.

The fact here is that Carrie's first three children were boys. This doesn't necessarily mean all of her upcoming children will be boys. So this is inductive reasoning.

Hope this helped!

Answer:

inductive

Step-by-step explanation:

Inductive

Write an equation in standard form
(0, -4) and (3,0)

Answers

Answer: y=-4/3x

Step-by-step explanation: The above equation is in standard form because it is written as "y = mx + b," where m is the slope and b is the y-intercept. In this case, the slope is -4/3 and the y-intercept is 0.

here is an inequality: -3x > 18 list some values for x that would make this inequality true

Answers

Step-by-step explanation: First, we need to solve this inequality.

When you're asked to solve an inequality like -3x > 18, your goal should be the same as it was when solving equations, to get x by itself on one side.

In this problem since x is being multiplied by -3 on the left side of the inequality, to get x by itself, we divide both sides by -3 but here is the rule you have to watch out for when solving inequalities.

When you divide both sides of an inequality by a negative number, you must switch the direction of the inequality sign. So this greater than in our original problem becomes less than in our second step.

On the left side, the -3's cancel and we're left with

x and on the right side, 18 divided by -3 is -6.

So we have x < -6.

Now, we are asked to state some solutions to the inequality.

The inequality x < -6 means that any number

less than -6 is a solution to the inequality.

For example, -7 is a solution because -7 is less than -6.

-8 is also a solution because -8 is less than -6.

Other possible solutions include -23, -98, -982, and so on.

Any number less than -6 will be a solution.

WILL GET 100 PTS!

Juan builds this pedestal for a trophy.

What is the volume of the pedestal?

WILL GET 100 PTS! Juan builds this pedestal for a trophy.What is the volume of the pedestal?

Answers

Answer:

112 in³

------------------------------------

The pedestal is the combination of two rectangular prisms.

One of them has dimensions:

9 in by 2 in by 4 in

Its volume is:

V = 9*2*4 = 72 in³

The other one has dimensions:

(9 - 2 - 2) = 5 in by 2 in by 4 in

Its volume is:

V = 5*2*4 = 40 in³

Total volume is:

72 + 40 = 112 in³

Answer:

112 in³

Step-by-step explanation:

The pedestal is made up of two rectangular prisms.

\(\boxed{\begin{minipage}{5.8 cm}\underline{Volume of a rectangular prism}\\\\$V=w\cdot l\cdot h$\\\\where:\\ \phantom{ww}$\bullet$ $w$ is the width of the base. \\ \phantom{ww}$\bullet$ $l$ is the length of the base.\\\phantom{ww}$\bullet$ $h$ is the height of the prism.\\\end{minipage}}\)

The dimensions of the largest rectangular prism are:

w = 2 inl = 9 inh = 4 in

Therefore, the volume of the largest rectangular prism is:

\(\begin{aligned}\implies V&=2 \cdot 9 \cdot 4\\&=18 \cdot 4\\&=72\;\rm in^3\end{aligned}\)

The dimensions of the smaller rectangular prism are:

w = 2 inl = 9 - 2 - 2 = 5 inh = 4 in

Therefore, the volume of the smaller rectangular prism is:

\(\begin{aligned}\implies V&=2 \cdot 5 \cdot 4\\&=10\cdot 4\\&=40\;\rm in^3\end{aligned}\)

The volume of the pedestal is the sum of the volumes of the largest and smaller rectangular prisms:

\(\implies V=72+40=112\; \rm in^3\)

Therefore, the volume of the pedestal is 112 in³.


I need the answer urgently please !!

I need the answer urgently please !!

Answers

Answer:

y = 2x - 1

Step-by-step explanation:

Given equation:

y = 2(x + 1)

y = 2x + 2

slope = 2

y = mx + b

y = 2x + b

Point: (2/3, 1/3)

1/3 = 2(2/3) + b

1/3 = 4/3 + b

b = -3/3

b = -1

y = 2x - 1

Please help!!!! I will give points to correct answer !!!

Please help!!!! I will give points to correct answer !!!

Answers

The equation that shows the Pythagorean identity is true for θ = 270° and is in the form sin²θ + cos²θ = 1 is option  B. 0² + (-1)² = 1

The Pythagorean identity is a fundamental trigonometric identity that relates the sine and cosine functions. It states that for any angle θ, the sum of the squares of the sine and cosine of that angle is equal to 1: sin²θ + cos²θ = 1.

We are given θ = 270° and we need to select the equation that satisfies the Pythagorean identity in the given form.

Let's evaluate each option:

A. 0² + 1² = 1

In this case, sin²θ = 0² = 0 and cos²θ = 1² = 1. Adding them together, we get 0 + 1 = 1, which satisfies the Pythagorean identity.

B. 0² + (−1)² = 1

Here, sin²θ = 0² = 0 and cos²θ = (−1)² = 1. Adding them, we have 0 + 1 = 1, which satisfies the Pythagorean identity.

C. (−1)² + 0² - 1

In this equation, sin²θ = (−1)² = 1 and co

s²θ = 0² = 0. However, the equation does not satisfy the Pythagorean identity because 1 + 0 - 1 ≠ 1.

D. 1² + 0² = 1

For this option, sin²θ = 1² = 1 and cos²θ = 0² = 0. Adding them together, we get 1 + 0 = 1, which satisfies the Pythagorean identity.

Based on our evaluation, options A and B both satisfy the Pythagorean identity for θ = 270°. Therefore, either A or B can be selected as the correct equation.The correct answer is  b.

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The Question was Incomplete, Find the full content below :

Which equation shows that the Pythagorean identity is true for θ = 270°?

Select the equation that is in the form sin²θ+ cos²θ = 1.

A. 0² + 1² = 1

B. 0² + (−1)² = 1

C. (-1)² + 0² - 1

D. 1² + 0² = 1

Select the correct answer.
Each statement describes a transformation of the graph of f(x) = x. Which statement correctly describes the graph of g(x) if g(x) = f(x - 11)?
A. It is the graph of f(x) where the slope is increased by 11.
It is the graph of f(x) translated 11 units to the left.
It is the graph of f(x) translated 11 units up.
It is the graph of f(x) translated 11 units to the right.
B.
C.
OD.

Answers

The correct answer is C. It is the graph of f(x) translated 11 units to the left.

The correct answer is:

C. It is the graph of f(x) translated 11 units to the left.

When we have a function of the form g(x) = f(x - a), it represents a horizontal translation of the graph of f(x) by 'a' units to the right if 'a' is positive and to the left if 'a' is negative.

In this case, g(x) = f(x - 11), which means that the graph of f(x) is being translated 11 units to the right. However, the answer options do not include this specific transformation. The closest option is option C, which states that the graph of g(x) is translated 11 units to the left.

The graph of f(x) = x is a straight line passing through the origin with a slope of 1. If we apply the transformation g(x) = f(x - 11), it means that we are shifting the graph of f(x) 11 units to the right. This results in a new function g(x) that has the same shape and slope as f(x), but is shifted to the right by 11 units.

Therefore, the correct answer is C. It is the graph of f(x) translated 11 units to the left.

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Click on all the points that are solutions to y = x^2 - 9.

A) (0,-3)
B) (2,-5)
C) (3.-3)
D) (3,0)
E) (7,4)

Answers

Answer:b and C

Step-by-step explanation:

A & B .........................

7x + 14
Please fasttt

Answers

Answer:

7x + 14

Step-by-step explanation:

Answer:

Step-by-step explanation:

7(x + 2)

en una escuela por cada 5 estudiantes hombres hay 13 estudiantes mujeres si en total de los estudiantes es de 34,000 ¿cuántos hombre y mujeres hay ?

Answers

There are 9444 men and 24555 females are present.

What is Fraction?

The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.

The number of parts into which the whole has been divided is shown by the denominator. It is positioned in the fraction's lower portion, below the fractional bar.How many sections of the fraction are displayed or chosen is shown in the numerator. It is positioned above the fractional bar in the upper portion of the fraction.

Given:

Total students = 34000

For every 5 male students there are 13 female students.

So, the number men are

= 5/18 x 34000

= 9444

and, number of women

= 13/ 18 x 34000

= 24, 555.

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The question attached here is in other language whose translation is given below.

In a school for every 5 male students there are 13 female students. If the total number of students is 34,000, how many men and women are there?

I need some help, please!!! I will try to give brainliest!!

I need some help, please!!! I will try to give brainliest!!

Answers

Answer:

B

Step-by-step explanation:

Hello,

the green line include the number -6 so we already know that x ≤ -6

but the green line does not include -5 so x > -5

Finally the answer is x ≤ -6 or x > -5

Good luck

i giveee brainlilstttt

i giveee brainlilstttt

Answers

Answer:

R would become (-8,10)

S would become (-7,10)

T would become (-7,0)

U would become (-8,0)

Answer:

wow man how nice thanks

Step-by-step explanation:

woooooooooooooow ;)))

Given that the measure of Angle CDB = 31 degrees find the indicated
measures for angle 1 and 2.

Given that the measure of Angle CDB = 31 degrees find the indicatedmeasures for angle 1 and 2.

Answers

Answer:

angle 1=149°

angle 2=31°( because they are alternating angles)

how do i plot this??

how do i plot this??

Answers

Answer:

its pretty simple actually put a point after the -1 (-0.9) and move left twice from -1 to get the plot point -1.2

how do i plot this??

How do I find the reference angle for the following?

How do I find the reference angle for the following?

Answers

Answer: 1.4 pi, and pi/180

Step-by-step explanation:

b)

this is a negative angle; It is also less than 0.5pi, (pi/2, which is the border of the first quadrant). therefore the reference angle is just the positive version:

so 1.4pi is the reference angle

c)

pi/180 is already in the first quadrant. so pi/180 would be the reference angle.

Please help me answer this question

Please help me answer this question

Answers

For the function  \(A(t)=4000e^0^.^0^4^t\) the value of A'(8) is $220 and the value of \(A'(t)=160e^0^.^0^4^t\)

The given function is \(A(t)=4000e^0^.^0^4^t\) gives the balance after t years.

The initial investment is 8000

4% is the compounded interest.

Now differentiate with respect to t

\(A'(t)=0.04(4000)e^0^.^0^4^t\)

\(A'(t)=160e^0^.^0^4^t\)

Now let us find the value of A'(8)

Plug in t as 8

\(A'(8)=160e^0^.^0^4^(^8^)\)

A'(8)=220.3

Hence, the value of A'(8) is $220 and the value of \(A'(t)=160e^0^.^0^4^t\)

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Can you please help #1-3 thank you

Can you please help #1-3 thank you

Answers

Answer:

1. B

2. C

3. B

Step-by-step explanation:

You're Welcome

Add 8/9+4/9 and Simplify the answer and write as a mixed number.

Answers

Answer:

1 1/3

Step-by-step explanation:

Answer:

12/9= 1 and 1/3

Step-by-step explanation:

Six students write an exam. The average score obtained on the exam by the group of students is 71%. If the first two students each obtained a mark of 73%, while the next three students each obtained a mark of 68%, what was the mark obtained by the sixth student?

Answers

Let's calculate the total marks obtained by the six students.

The first two students obtained a mark of 73%, which gives us a total of 73 + 73 = 146 marks.

The next three students obtained a mark of 68% each, which gives us a total of 68 + 68 + 68 = 204 marks.

The average score obtained by the group is 71%. Since there are six students, the total marks obtained by all six students would be 6 * 71 = 426 marks.

To find the mark obtained by the sixth student, we can subtract the total marks obtained by the first five students from the total marks obtained by all six students: 426 - (146 + 204) = 76 marks.

Therefore, the mark obtained by the sixth student is 76%.

Suppose that 12% of people own dogs. If you pick two people at random, what is the probability that they both own a dog?

Answers

Answer:

Probability of owning one dog;

12/100 = 0.12

Probability of owning 2 dogs;

0.12 x 0.12 = 0.0144, but we make it a percent so:-

1.44%, there is a 1.44% probability that they both own a dog.

Answer this Fraction based Question I will provide you 50point + make you as brainliest.​

Answer this Fraction based Question I will provide you 50point + make you as brainliest.

Answers

It is given that 2/5 of all patients admitted to ward 17.

Remining fraction is:

1 - 2/5 = 5/5 - 2/5 = 3/5

So 3/5 of patients admitted to ward 18.

Since 1/6 of all patients moved to another ward, and the reminder assigned as before, the initial fraction becomes:

1 - 1/6 = 6/6 - 1/6 =5/6

Now, 3/5 of the new fraction, 5/6 is admitted to ward 18.

That is:

3/5*5/6 = 3/6 = 1/2

This is half of the patients.

The difference of the number of the patients admitted to ward 17 is the same fraction of the number of infected:

10*2/5 = 4

So the difference of patients is 4.

The floating cities appear to float pretty high off the surface to you and you'd like to know just
how far off the surface they are. Zolonians measure distance in bedars instead of kilometers. To convert bedars to
kilometers the formula is 16km + 12 = bedars. If Zolon's cities float 204 bedars in the air, how many kilometers off the
surface of Zolon is that?

Answers

Answer:

12 km

Step-by-step explanation:

16km + 12 = 204

Subtract 12 from both sides:

⇒ 16km = 192

Divide both sides by 16:

⇒ km = 12

A book sold 36,500 copies in its first month of release. suppose this represents 8.4% of the number of copies sold to date. How many copies have been sold to date?

Answers

Answer: 434,524

Step-by-step explanation:

We know 36,500 is 8.4% of the total. To find 100%, we must divide 36500 by 8.4 to find 1% which is 4345.238...

To get from 1% to 100%, we must multiply our answer by 100 to get 434523.8 which we can then round to the nearest whole number 434524

i need help with this and finding what angle A is

i need help with this and finding what angle A is

Answers

Bcksnckmsmcnsknfsknsnsnsbnsns

Smaller p-values indicate more evidence in support of the: A. the reduction of variance B. null hypothesis C. quality of the researcher D. alternative hypothesis

Answers

Answer:

A. the reduction of variance

Step-by-step explanation:

If the p bakue gets smaller, the smaller the p- value the stronger the evidence that we can or we should totally reject and not accept the null hypothesis.

Id the p value is lower, the result is trumpeted as significant, but if higher,it is not significant.

So Smaller p-values indicate more evidence in support of the the reduction of variance

how did researchers come up with 684 coins needed to collect all of the pennies from 1959 to 1997?

Answers

The researchers came up with this number by making a model with specific coins to determine the difficulty, in terms of the probability of getting this coin.

What was the researchers purpose?

The researchers Shiyoung Lu and Steven Skiena wanted to know how probable it was to collect a complete set of pennies since 1959 until 1997. By the end of this study, they decided at least 684 coins must be collected to complete this mission.

Why did they come out with this answer?

Firstly, they analyze the probability for getting one coin. From this, it was concluded the probabillity was lower for old coins. After this, they used the data collected from all the coins and created an equation. This equation or model led them to conclude the answer was 684 coins.

Note: This question is incomplete because the text it refers to is missing; here is the name of the text:

"The Probabilities of Pennies"

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