SOLUTION: A high school baseball player has a 0.272 batting average. In one game, he gets 5 at bats. What is the probability he will get at least 2 hits in the game? Round your answer to 3 d
Algebra ->
Probability-and-statistics
-> SOLUTION: A high school baseball player has a 0.272 batting average. In one game, he gets 5 at bats. What is the probability he will get at least 2 hits in the game? Round your answer to 3 d
Log On
Question 1147246: A high school baseball player has a 0.272 batting average. In one game, he gets 5 at bats. What is the probability he will get at least 2 hits in the game? Round your answer to 3 decimal places.
Straightforward binomial probability calculations -- although very cumbersome.
At least 2 hits in 5 at bats means NOT 0 or 1 hits. So
1 - ((P(0 hits)+P(1 hit))
A good scientific calculator will do all the ugly computations for you.
On the TI-83, binomcdf(a,b,c) will calculate the cumulative probability of AT MOST c successes in a trials if the probability of success on each trial is b.
To find binomcdf, press 2nd-VARS (DISTR) and scroll down to A:binomcdf
Again, since you want the probability of AT LEAST 2 hits, you want to calculate 1 minus the probability of AT MOST 1 hit:
