Question

need major help on this giving medals
Determine whether the given event is independent or dependent. Then find the probability.

There are 3 strawberry ice creams, 4 chocolate ice creams, and 7 vanilla ice creams on a tray. Barbara selects 2 ice creams at random without replacement. What is the probability that she selects 2 chocolate ice creams?

Answer 1

EVENTS can be independent/dependent; talking about one event being independent makes no sense

Answer 2

my thought is they mean picking each ice cream as a separate event in which case they are dependent as sampling without replacement can significantly affect the probabilities

Answer 3

a.) dependent 2/91
b.) dependent 91/2
c.) dependent 2/35
d.) independent 2/21

Answer 4

At the start, she has 14 icecreams to choose from, correct? For the first choice, the chance of picking chocolate is 4/14, which is 2/7.

For the second one, if she picked a chocolate on the first one, then without replacement, there are 3 chocs left and 13 icecreams total left. The probability of picking choc is now down to 3/13.

Multiply these probabilities to get the probability of getting two chocolates:

2/91

That is your answer. Hope I helped :)