Which expression has a value of -6 A. -4 • 2 - (-14) B. -16 divided by (-2) - (-2) C. -2 - (-8) divided by (-1) D. -12 divided b
1 answer:
You might be interested in
Answer:
a. 8.66 minutes
Step-by-step explanation:
Since the flight times are uniformly distributed, the standard deviation can be calculated as follows:
Where '<em>b' </em>is the maximum flight time (150 minutes) and '<em>a' </em>is the minimum flight time (120 minutes):
The distribution's standard deviation is 8.66 minutes.