If a baseball player has a batting average of 0.315, what is the probability that the player will get the following number of hits in the next four times atbat?

(A) Exactly 2 hits

(B) At least 2 hits

If atrue-false test with 10 questions isgiven, what is the probability of scoring

(A) Exactly80% just byguessing?

(B) 80% or better by justguessing?

A coin is loaded so that the probability of a head occurring on a single toss is two thirds. In four tosses of thecoin, what is the probability of getting all heads or alltails?

The probability of all heads or all tails is

nothing (Round to three decimal places asneeded.)