The time to fly between new york city and chicago is uniformly distributed with a minimum of 120 minutes and a maximum of 150 minutes. what is the distribution's standard deviation? select one: a. 8.66 minutes b. 75 minutes c. 135 minutes d. 270 minutes

a. 8.66 minutes

Step-by-step explanation:

Since the flight times are uniformly distributed, the standard deviation can be calculated as follows:

Where 'b' is the maximum flight time (150 minutes) and 'a' is the minimum flight time (120 minutes):

The distribution's standard deviation is 8.66 minutes.

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )