1-On an elevator, it is noted that it can hold 1500 pounds or up to 7 people. The mean weights of people in the area is 176.45 pounds with a standard deviation of 47.54 pounds. If 7 random people get on, what is the

P(elevator breaks)?

2-On a elevator, it is noted that it can hold 2500 pounds or up to 15 people. The mean weight of people in the area is 163 pounds with a standard deviation of 32.5 pounds. If 15 random people were to get on the elevator, P(elevator breaks)

3-An elevator is evaluated to have a .0204 chance of breaking when filled to the claimed max capacity for people. Would Professor Kim in all his statistic's wisdom deem the elevator safe to ride or dangerous to ride in this situation.

Dangerous

Safe

4-The probability of having a boy is .512

If we were to observe 20 random births,

find P(fewer than 8 boys out of 20 random births).

HINT: n = 20, p=.512

5 -P(win) = .4343

320 games are played.

P(between 130 to 140 games are wins out of the 320 games)?