(b)Write the equation that gives the z score corresponding to a Stanford-Binet IQ test score. 100)/ z = (x- (c) Find the probability that a randomly selected person has an IQ test score. (Round your answers to 4 decimal places.) 1. P(x> 136) 2. P(x<78) 3. P(80

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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3
S
Book
6
Print
Ferences
Stanford-Binet IQ Test scores are normally distributed with a mean score of 100 and a
standard deviation of 11.
(b)Write the equation that gives the z score corresponding to a Stanford-Binet IQ test
score..
z = (x-1 100 ) /
(c) Find the probability that a randomly selected person has an IQ test score. (Round
your answers to 4 decimal places.)
1. P(x> 136)
2. P(x<78)
3. P(80<x< 120)
4. P(-1.54 < z < 1.54)
P
11
2.8%
0.0228
0.8764
(d)Suppose you take the Stanford-Binet IQ Test and receive a score of 121. What
percentage of people would receive a score higher than yours? (Round your answer
to 2 decimal places.)
II
Transcribed Image Text:3 S Book 6 Print Ferences Stanford-Binet IQ Test scores are normally distributed with a mean score of 100 and a standard deviation of 11. (b)Write the equation that gives the z score corresponding to a Stanford-Binet IQ test score.. z = (x-1 100 ) / (c) Find the probability that a randomly selected person has an IQ test score. (Round your answers to 4 decimal places.) 1. P(x> 136) 2. P(x<78) 3. P(80<x< 120) 4. P(-1.54 < z < 1.54) P 11 2.8% 0.0228 0.8764 (d)Suppose you take the Stanford-Binet IQ Test and receive a score of 121. What percentage of people would receive a score higher than yours? (Round your answer to 2 decimal places.) II
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