SOLUTION: A continuous random variable is normally distributed with mean of 915.3 and standard deviation of 71.8. According to the empirical rule between what two values would you classify

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Question 871264: A continuous random variable is normally distributed with mean of 915.3 and standard deviation of 71.8. According to the empirical rule between what two values would you classify values to be below average but not enough to be considered unusual?


Select one or more:
a. 1658.9
b. 915.3
c. 1130.7
d. 699.9
e. 987.1
f. 771.5
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi, previously Posted

between what two values would you classify values to be below average 

but not enough to be considered unusual? between 771.5 and 915.3

Between 915.3 -71.8   and 915.3 + 71.8 (843.5 , 987.1)  1 SD

Between 915.3 -143.6   and 915.3 + 143.6 (771.7 , 1058.9) 2 SD

For the normal distribution: 

one  standard deviation from the mean accounts for about 68% of the set 

two standard deviations from the mean account for about 95%

and three standard deviations from the mean account for about 99.7%.