Question

The probability that a certain hockey team will win any given game is 0.3628 based on their 13 year win history of 377 wins out of 1039 games played (as of a certain date). Their schedule for November contains 12 games. Let X = number of games won in November. Find the probability that the hockey team wins at least 7 games in November. (Round your answer to four decimal places.)

Please use TI-84 calculator not excel. Thanks!

Answer 1

Solution

We are given that:

p=the probability that a certain hockey team will win the game=0.3628

In November there are 12 games.

Thus n=sample size=12

We have to find the probability that the hockey team will win at least 7 games in November.

That is we have to find:

Which can be written as

To find use TI 84 calculator.

Steps are

Step 1: Press 2nd button

Step 2 : press VARS

step 3: select binomcdf(

And enter numbers

Step 4 : select paste and Press enter button two times, which results following

thus we get

Thus

Thus the probability that hockey team will win at least 7 games is 0.1007