The cutoff score for intellectual disability is approximately two standard deviations below the mean. If IQ scores were normally distributed, this would mean that approximately _____ percent of the population would fall below this cutoff?

a. 0.5
b. 2
c. 9
d. 15

Answer: b.

Psychology

The incidence of deaths from heart disease has stayed approximately the same in this country

for the past 50 years. Indicate whether the statement is true or false

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Psychology

Approximately ____ of American children are obese

a. 1 in 4 b. 1 in 5 c. 1 in 6 d. 1 in 7

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Psychology