a. For classes of 162 students, find the mean and standard deviation for the number born...
a. For classes of 162 students, find the mean and standard deviation for the number born on the 4th of July. Ignore leap years
b. For a class of 162 students, would two be an unusually high number who were born on the 4th of July?
a. The value of the mean is
μ=____.
(Round to six decimal places as needed.)
Homework Answers
a) P(Born at 4th July) = 1/365
Hence,
Mean = np = 162(1/365) = 0.443836
Standard deviation =
= 0.665297
b) Maximum usual value = Mean + 2*SD = 0.443836 + 2*0.665297 = 1.77443
Since 2 is greater than the maximum usual value, it is an unusually high number.
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