True or False: For two events A and B, suppose P(A ) = 0.1, P(B) ...

[jazziefee]

True or False: For two events A and B, suppose P(A ) = 0.1, P(B) = 0.8, and P(AB) = 0.1. Then A and B are independent.
 
  A) True B) False

Question 2

A drug company wanted to test a new arthritis medication. The researchers found 300 adults aged 25-35 and randomly assigned them to two groups. The first group received the new drug, while the second received a placebo.
 
  After one month of treatment, the percentage of each group whose arthritis symptoms decreased was recorded and compared. What type of experimental design is this? A) completely randomized design B) randomized block design
  C) matched-pairs design D) single-blind design

[briezy]

Answer to Question 1

A

Answer to Question 2

A

[jazziefee]

Thank you!

[briezy]

Always glad to help...