A baseball player has a batting average of 0.346, so the ...

[panfilo]

A baseball player has a batting average of 0.346, so the probability of a hit is 0.346. Assume that his hitting attempts are independent of each other.
 
  Assume that the batter gets up to bat 4 times in each game. Estimate the probability that in 50 consecutive games, there are at least 45 games in which the batter gets at least one hit. (Hint: first find the probability that in one game the batter gets at least one hit)
  A) 0.0643 B) 0.0918 C) 0.0446 D) 0.8171

Question 2

Compute the variance. Jeanne is currently taking college zoology. The instructor often gives quizzes. On the past five quizzes, Jeanne got the following scores:
 
  15 20 1 15 19
  A) 57.9 B) 46.4 C) 98.8 D) 58.0

[kalskdjl1212]

Answer to Question 1

B

Answer to Question 2

D

[panfilo]

Gracias!

[ghepp]

TYSM