STAT 200 PSU Quiz 3 STAT 200 PSU Quiz 3

1.

Decide if the probability described is a subjective (personal) probability or a relative frequency probability: A quarter is flipped 2000 times and results in 500 heads. The 25% (500/2000) chance of heads is a

[removed]A) subjective probability. 
[removed]B) relative frequency probability. 

2.

A statistics class has 4 teaching assistants (TAs): three female assistants (Lauren, Rona, and Leila) and one male assistant (Josh). Each TA teaches one discussion section. A student picks a discussion section. The two events W = {the TA is a woman} and J = {the TA is Josh} are

[removed]A) independent events. 
[removed]B) disjoint (mutually exclusive) events. 
[removed]C) each simple events. 
[removed]D) None of the above. 

Feedback: These events are mutually exclusive since both events cannot occur at the same time.