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sertanlavr [38]

2 years ago

8

A standard I.Q. test produces normally distributed results with a mean of 104 and a standard deviation of 16 for 52,000 students

in grade 12 in the province. Approximately how many of these people would have I.Q.s below 76?
2,127

4,170

23,915

2,083

1 answer:

Anastasy [175]2 years ago

5 0

Z = (76 - 104)/16
z = -1.75
4%
.04 * 52,000 = 2083

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