1-There are 4 red and 5 blue marbles in a jar.

Marbles are picked randomly. Each marble has the same probability of being picked.

What is the P(red and then blue) without replacement in decimal form?

2- Girls Boys

Over 20 120 70

Under 20 80 140

Based on the chart above, if a person is picked randomly from the group,

P(over 20 and girl)?

Give the number for % form but do not type in the % sign.

3 -There are 6 people. I will pick 3 people to be on my team. How many combinations are possible for making different teams?

4-I flip a coin 15 times. How many possibilities are there if I dont care about an order?

5-x P(x)

5 .45

6 .25

11 .3

Based on the random variable above, what is the standard deviation?

6-The probability a person likes bananas is .77

P(5 out of 7 people like bananas)?

7- The probability a person likes bananas is .77

I interview 500 random people.

What would be the upper value of the IoNV of people that like bananas?

IONV- Interval of Normal Values