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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
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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

User Mvb
by
8.1k points

1 Answer

1 vote
z = (76 - 104)/16
z = -1.75
4%
.04 * 52,000 = 2083
User Abrkn
by
8.6k points
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