The Venn diagram shows the number of students in a chorus, band, and/or orchestra

Problem 1

Work Shown:

Add up the items that are in "chorus" and "band" circles. So we have 4+5 = 9 people who are in both activities.

This is out of 10+4+7+5+16+8 = 50 students total.

So 9/50 is the probability of picking someone from chorus and band.

This choice isn't listed so I think your teacher made a typo. Double check to make sure you copied the problem exactly as your teacher gave it.

Side note: Choice A might have been intended to be 9/50 instead of 9/70.

Problem 2

Work Shown:

There are 10+4 = 14 people in chorus but not in orchestra.

This is out of 50 total, so 14/50 is the answer.

Problem 3

Work Shown:

There are 7+5+16+8 = 12+24 = 36 people in orchestra.

There are 5+8 = 13 people in band and orchestra.

13/36 represents the probability of picking someone from band given they are also in orchestra. Note how we focus on the orchestra circle only , and ignore every other circle. This is because we know the person is from orchestra due to the "given".

answer:      

step-by-step explanation:

median is the value separating the higher half of a data sample, a population or probablity distribution from the lower half.

step-by-step explanation:

say you have 3,8,7,3,1,9,8 order them from lowest to highest

if orderd it would be 1,3,3,7,8,8,9 now you take away from the lowest and the highest until you end up in the middle.

so you would remove the 1 and 9 leaving you with 5 digits remaining

when you've reached the middle that would be your answer so in this case the answer is 7

if there were two numbers left say 7 and 5 you'd and them together so 12 then divide by 2 witch would equal 6 so the answer would be 6

good luck on that project hoped i you at all