1. In a normally distributed set of data containing 24 114 scores, how many scores is expected to be more than two standard deviations away from the mean? - 147 and g = 3.4, is the score %3D

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1. In a normally distributed set of data containing 24 114 scores, how many
scores is expected to be more than two standard deviations away from the
mean?
2. In a normally distributed set of data with u = 14.7 and o = 3.4, is the score
X = 7.4 considered an outlier?
3. In a set of scores that are normally distributed, the score three standard
%3D
deviationsbelow the mean is 11.4 and the score three standard deviations
above the mean is 73.2. Solve for the mean and standard deviation of the
set of scores.
4. On the average, teenagers spend 7.4 hours sleeping at night, witha standard
deviation of 1.3 hours. What is the probability that a randomly chosen
teenager sleeps for 4.8 hours to 6.1 hours only?
Transcribed Image Text:1. In a normally distributed set of data containing 24 114 scores, how many scores is expected to be more than two standard deviations away from the mean? 2. In a normally distributed set of data with u = 14.7 and o = 3.4, is the score X = 7.4 considered an outlier? 3. In a set of scores that are normally distributed, the score three standard %3D deviationsbelow the mean is 11.4 and the score three standard deviations above the mean is 73.2. Solve for the mean and standard deviation of the set of scores. 4. On the average, teenagers spend 7.4 hours sleeping at night, witha standard deviation of 1.3 hours. What is the probability that a randomly chosen teenager sleeps for 4.8 hours to 6.1 hours only?
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