1. The mean of a normal probability distribution is 380; the standard deviation

Question

1. The mean of a normal probability distribution is 380; the standard deviation is 13.

        

1. The mean of a normal probability distribution is 380; the standard deviation is 13.

a. About 68% of the observations lie between what two values?   Lower Value:      Upper Value:    b. About 95% of the observations lie between what two values?   Lower Value:      Upper Value:    c. Nearly all of the observations lie between what two values?   Lower Value:      Upper Value:   
2. A uniform distribution is defined over the interval from 1 to 8.

Explanation / Answer

1. The mean of a normal probability distribution is 380; the standard deviation is 13.

        

1. The mean of a normal probability distribution is 380; the standard deviation is 13.

a. About 68% of the observations lie between what two values?   Lower Value:      Upper Value:    b. About 95% of the observations lie between what two values?   Lower Value:      Upper Value:    c. Nearly all of the observations lie between what two values?   Lower Value:      Upper Value:   
2. A uniform distribution is defined over the interval from 1 to 8.

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