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Questions and answers by
Momen zidan
Questions (3)
For the standard normal curve, find the z-score that corresponds to the first quartile.
2 answers
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14. Assume that the random variable X is normally distributed, with mean of 100 and standard deviation of 20. Compute the
1 answer
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16. Find the z-score for which 99% of the distribution's area lies between - z and z.
1 answer
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Answers (1)
x=mean+score * SD x=100+2.33*15=134.95 so x=134.95
