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Maslowich
3 years ago
13

How much do I shade in

Mathematics
2 answers:
zheka24 [161]3 years ago
6 0

the answer is 2/5. You just cancle 2 and 4

lara [203]3 years ago
3 0
4/10 is equal to 4 out of 10 or 40%
This means you should shade 4 of the 10 blocks
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At a local company, 15% of the employees are women. every day, 9% of them bring their lunch to work, while only 3% of the men br
fenix001 [56]

Answer:

a) 0.3462 = 34.62% that a randomly selected employee is a woman given that the person brings their lunch to work.

b) 0.09 = 9% probability that a randomly selected employee brings their lunch to work given that person is a woman.

c) 0.3462 = 34.62% that a randomly selected employee is a woman given that the person brings their lunch to work.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening.

Questions a/c:

Questions a and c are the same, so:

Event A: Brings lunch to work.

Event B: Is a woman.

Probability of a person bringing lunch to work:

9% of 15%(woman)

3% of 100 - 15 = 85%(man). So

P(A) = 0.09*0.15 + 0.03*0.85 = 0.039

Probability of a person bringing lunch to work and being a woman:

9% of 15%, so:

P(A \cap B) = 0.09*0.15

Desired probability:

P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.09*0.15}{0.039} = 0.3462

0.3462 = 34.62% that a randomly selected employee is a woman given that the person brings their lunch to work.

Question b:

Event A: Woman

Event B: Brings lunch

15% of the employees are women.

This means that P(A) = 0.15

Probability of a person bringing lunch to work and being a woman:

9% of 15%, so:

P(A \cap B) = 0.09*0.15

Desired probability:

P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.09*0.15}{0.15} = 0.09

0.09 = 9% probability that a randomly selected employee brings their lunch to work given that person is a woman.

4 0
2 years ago
It is now 12 weeks after both babies was born. Which statement is true?
BartSMP [9]

Answer:

A

Step-by-step explanation:

Go to the graph at 12 weeks and the line for Baby A is above Baby B.

7 0
2 years ago
Read 2 more answers
A airplane travels a speed of 300 miles per hour how far in miles will the air plane travel in 20 minutes decmal or fraction ans
Ierofanga [76]

Answer: 15 or \frac{15}{1}

Step-by-step explanation:

We need to divide 300 by 20.

We get 15 or \frac{15}{1}.

7 0
2 years ago
Read 2 more answers
What is the first step in finding the unit price on a box of 20 pencils?
olga55 [171]

You would need to know the cost of the box of 20, then you would divide the total cost by the number of pencils in the box. This would give you the cost of one pencil - which is the unit cost.


Example:

Lets say the box of 20 pencils cost $10.


Divide the total cost by the number of pencils:

10 / 20 = 0.50 - This means each pencil cost 50 cents, so the unit cost would be 50 cents per pencil.

7 0
3 years ago
How do you solve 4.75 times 2.2
Serga [27]

Answer:

10.45

Step-by-step explanation:

To solve it without the calculator:

First, you multiply 4.75 times 0.2    (0.95)

Then you multiply 4.75 times 2       (9.5)

Then you add the 2 numbers to get the answer.

0.95 + 9.5 = 10.45

With the calculator, just put in the 2 numbers and click enter!

7 0
3 years ago
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