Scores on the wechsler adult intelligence scale


The scores on the Wechsler Adult Intelligence Scale are approximately Normal with ? = 100 and ? = 15?

How high a score is needed to be in the highest 10%?

Not sure how I would do this? would i need to use a z-score?

the choices are

a. 115

b. 125

c. 130

d. 135

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Basic Statistics: Scores on the wechsler adult intelligence scale
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