Mathematics, 17.10.2019 15:30 asims13
The random variable y is normally distributed with a mean of 470, and the value y=340 is at the 15th percentile of the distribution. of the following, which is the best estimate of the standard deviation of the distribution?
a) 125
b) 135
c) 145
d) 155
e) 165
Answers: 3
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