Question

Which pair of events is dependent?

A. You get a head and a tail in 2 coin tosses with two different coins.

B. You get a head and a tail in 2 coin tosses using the same coin twice.

C. You pick 2 numbered billiard balls from a bag of balls one after the other without replacement.

D. You draw 2 red cards one after the other with replacement.

Answer 1

for choice A, you use 'two different coins' so do you think if you toss the first coin, it will affect the result of the second one?

for choice B, same thing as A

for choice C, if you pick one ball without replacing it, do you think the sample space for picking the second ball will be different?

for choice D, if you replace the first card and you replace it, do you think it will make a difference?