Question

The Wechsler Adult Intelligence Scale (WAIS) is the most common IQ test. The distribution of scores for adults taking the WAIS is approximately Normal with a mean of 100 and a standard deviation of 15. Use the 68-95-99.7 rule to answer the questions about WAIS scores. What percentage of adults score above 100? 2.5% 32% 68% 0.3% 84% 50%

          The Wechsler Adult Intelligence Scale (WAIS) is the most common IQ test. The distribution of scores for adults taking the WAIS is approximately Normal with a mean of 100 and a standard deviation of 15.

Use the 68-95-99.7 rule to answer the questions about WAIS scores.

What percentage of adults score above 100?

2.5%
32%
68%
0.3%
84%
50%

The Wechsler Adult Intelligence Scale (WAIS) is the most common IQ test. The distribution of scores for adults taking the WAIS is approximately Normal with a mean of 100 and a standard deviation of 15.

Use the 68-95-99.7 rule to answer the questions about WAIS scores.

What percentage of adults score above 100?

2.5%
32%
68%
0.3%
84%
50%

Added by Anthony F.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Maitreya E

04/13/2022

Step 1

7 rule for a normal distribution: - Approximately 68% of the data falls within 1 standard deviation of the mean. - Approximately 95% of the data falls within 2 standard deviations of the mean. - Approximately 99.7% of the data falls within 3 standard deviations of Show more…

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The Wechsler Adult Intelligence Scale (WAIS) is the most common IQ test. The distribution of scores for adults taking the WAIS is approximately normal with a mean of 100 and standard deviation of 15. Use the 68-95-99.7 rule to answer the questions about WAIS scores: What percentage of adults score above 100? 2.5% 68% 0.37% 50% 32.76%