Answer: 0.05
Step-by-step explanation:
Given : Interval for uniform distribution : [46.0 minutes, 56.0 minutes]
The probability density function will be :-

The probability that a given class period runs between 50.75 and 51.25 minutes is given by :-

Hence, the probability that a given class period runs between 50.75 and 51.25 minutes = 0.05
Okay. So 7:30-10:00 is 2 hours 30 minutes or 2 1/2 hours. To find this, we have to do 156/60 to find the amount of time it takes to get there. 156/60 is 2.6, so it would take more than 2 1/2 hours to arrive in London. Kim does not arrive in London before 10:00 AM.
The factors of 36 that are perfect squares are 9 and 4