Author Question: A new phone system was installed last year to help reduce the expense of personal calls that were ... (Read 80 times)

schs14 · **on:** Jan 16, 2020

A new phone system was installed last year to help reduce the expense of personal calls that were being made by employees. Before the new system was installed, the amount being spent on personal calls follows a normal distribution with an average of $700 per month and a standard deviation of

per month. Refer to such expenses as PCE's (personal call expenses). Find the probability that a randomly selected month had a PCE that falls below $550.
◦ 0.0013
◦ 0.2143
◦ 0.9987
◦ 0.7857

juiceman1987 · **Reply #1 on:** Jan 16, 2020

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