jmadden513
25.11.2019 •
Mathematics
The distribution of the annual incomes of a group of middle management employees approximated a normal distribution with a mean of $37,200 and a standard deviation of $800. about 68 percent of the incomes lie between what two incomes?
a. $30,000 and $40,000
b. $36,400 and $38,000
c. $34,800 and $39,600
d. $35,600 and $38,800
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Ответ:
Option B.
Step-by-step explanation:
Given information:
A group of middle management employees approximated a normal distribution.
Population mean = $37,200
Population standard deviation = $800
About 68 percent of the incomes lie between two incomes and we need to find those two incomes.
We know that 68% data lies in the interval .
About 68 percent of the incomes lie between what two incomes $36,400 and $38,000.
Therefore, the correct option is B.
Ответ:
bruv please just ask a real question you doing this is hindering someone elses chance and thats really hurtful
Step-by-step explanation: