Mathematics, 03.12.2019 23:31 Averyruss9245
In a health club, research shows that on average, patrons spend an average of 42.5 minutes on the treadmill, with a standard deviation of 5.4 minutes. it is assumed that this is a normally distributed variable.
find the probability that randomly selected individual would spent between 30 and 40 minutes on the treadmill.
a)0.38
b)0.69
c)0.99
d)0.31
Answers: 1
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