A large company employs workers whose IQs are distributed normally with mean 110 and standard deviation...

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A large company employs workers whose IQs are distributed normally with mean 110 and standard deviation...

A large company employs workers whose IQs are distributed normally with mean 110 and standard deviation 7.5. Management uses this information to assign employees to projects that will be challenging, but not too challenging. What percent of employees would have IQs less than 101?

math Statistics-And-Probability

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Answer 1

Answer #1

Solution :

Given that ,

P(x < 101)

= P[(x - ) / < (101 - 110) / 7.5]

= P(z < - 1.2)

Using z table,

= 0.1151

11.51%

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Answer 2

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