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Whitepunk [10]
3 years ago
13

William Stern's formula for the intelligence quotient was mental age/chronological age × 100. What is the IQ of a 12-year-old w

ith a mental age of 9?
a. 125
b. 135
c. 75
d. 85
Social Studies
1 answer:
Ghella [55]3 years ago
5 0

William Stern's formula for the intelligence quotient was mental age/chronological age × 100. What is the IQ of a 12-year-old with a mental age of 9?

c. 75


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