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Instruction 13-1. Peoples intelligence quotient (I.Q.) has been shown to be normally distributed with a mean of 100 and st dev of 15. 9. Refer to Instruction 13-1. To be officially declared developmental delayed you must be in the bottom 2 %. of this distribution. This would mean your IQ was less than______

a. 100

b. 85

c 98

d. 83

e. 70

10. Refer to Instruction 13-1. To be labeled a genius you must have an IQ of over 140. About what percent of people does this apply to?

a. 34 %

b. 14 %

c. 2 %

d. 16 %

e. less than 2 %

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