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.

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation: