Question

PLEASE HELP i want to bring my grades up!!!!!!

Answer 1

Answer:

For the 1st question: the answer is 1/5 or b.

For the 2nd question: the answer is 2/3 or d.

For the 3rd question: the answer is 42.9%.

For the 4th question: the answer is 22.4%.

Step-by-step explanation:

Question 1: We have 12 + 8 + 2 (22) socks in total.

We know that the sock that we pick cannot be brown so 22 - 12 is 10. We have 2 blue socks, so we have a 2/10 or 1/5 chance of picking a blue sock.

Question 2: We have 13 + 4 + 8 (25) photographs in total.

We know that the photograph we pick cannot be a wedding photograph so 25 - 13 is 12. We have 8 holiday photographs, so we have a 8/12 or 2/3 chance of picking a holiday photograph.

Question 3: There are 14 part-time jobs, and we need one that you do need experience for. There are 6 that need experience in the part-time section, so the provability is 6/14. 6/14 = 0.42857 = 42.857%, which is 42.9% when you round it to the nearest tenth.

Question 4: The probability is 0.15/0.67 = 0.22388= 22.388%, which is 22.4% when rounded to the nearest tenth.

Answer 2

A drawer contains 12 brown socks, 8 white socks, and 2 blue socks. One sock is selected at random.  

What is the probability that the sock is blue, given that it is not brown?

Blue socks = 2

Not brown socks = 8 + 2 = 10

The probability that the sock is blue, given that it is not brown? = 2/10 = 1/5

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A box of photographs contains 13 wedding photographs, 4 vacation photographs, and 8 holiday photographs. One photograph is randomly selected.  

What is the probability that the photograph is a holiday photograph, given that it is not a wedding photograph?

Holiday photographs = 8

Not a wedding photograph = 4 + 8 = 12

The probability that the photograph is a holiday photograph, given that it is  not a wedding photograph = 8/12 = 2/3

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What is the probability that experience is needed for a randomly selected job opening, given that it is for part-time work?

Write the probability as a percent . Round to the nearest tenth if needed.

Experience is needed = 6 + 2 = 8

Part-time work = 6 + 8 = 14

The probability that experience is needed for a randomly selected job opening, given that it is for part-time work = 8/14 = 4/7 = 57.1%

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What is the probability that a randomly selected recipe does not contain sugar, given that it contains salt?

Recipe does not contain sugar = 0.31

Contains salt = 0.67

The probability that a randomly selected recipe does not contain sugar, given that it contains salt = 0.31/0.67 = 46.3%