batoolishak7475
25.10.2019 •
Mathematics
If the monthly electrical utility bills of all customers for the far east power and light company are known to be distributed as a normal distribution with mean equal to $87.00 a month and standard deviation of $36.00, which of the following would be the largest individual customer bill that you might expect to find? a) about $195.00b) approximately $811.00c) nearly $123.00d) there is no way to determine this without more information
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Ответ:
A) About $195.00
Step-by-step explanation:
In a normal distribution, the interval (mean - 3*standard deviation, mean + 3*standard deviation) account for about 99.7% of the values. In this case mean + 3*standard deviation = $87.00 + 3*$36.00 = $195.00. So, it 's expected that this amount of money would be the largest individual customer bill.
Ответ:
not enough information
Step-by-step explanation: