Question

You have a bag with 4 pairs of socks. There are 2 red pairs and 2 black pairs. You pull a sock from the bag and put it back 3 times. What is the probability that you pull out a red sock each time?

Answer 1

the total number of socks is 8
the first time you pull a sock, the probability that you will pull a red sock is 1/2
you put the sock back and try again. do you understand?

Answer 2

Event B is dependent on event A, and event A occurs before event B. Which formula can be used to find the probability of event A?

Select one of the options below as your answer:



A.

P(A and B)

P(B)




B.

P(A and B)

P(B|A)




C.

P(A and B)

P(A|B)




D.
P(A and B) × P(B|A)




E.
P(A and B) × P(B)

Answer 3

c?

Answer 4

no it should be B. P(B|A) or the probability that B occurs given that A has already occured

Answer 5

In a relay race, the probability that team Sapphire wins is 22%. In another unrelated relay race, the probability that team Emerald wins is 47%. What are the chances that both teams lose their races?

Answer 6

so for the first ?(the socksz) itsz 1/2

Answer 7

yes