straightforward ....
find z scores for both 12 and 14 minutes
go to the chart, look up the two z-scores proabilities, then subtract them
The time it takes me to wash the dishes is uniformly distributed between 11 minutes and 17 minutes.
What is the probability that washing dishes tonight will take me between 12 and 14 minutes?
Give your answer accurate to four decimal places.
3 answers
I assumed you know how to find the mean and sd for the given information.
.09
0 answers