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jmullins3611
14.05.2021 •
Mathematics
The price of a gallon of milk follows a normal distribution with a mean of $3.20 and a standard deviation of $0.10. What proportion of the milk vendors have prices that were less than $3.12 per gallon
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Ответ:
Step-by-step explanation:
Mean![\=x=\$3.20](/tpl/images/1324/3919/b54ff.png)
Standard deviation![\sigma =\$0.10](/tpl/images/1324/3919/5307e.png)
Estimated price![y=\$3.12](/tpl/images/1324/3919/2b34e.png)
Generally the equation for P(x<3.12) is mathematically given by
Since from Z table
Therefore the proportion of the milk vendors that have prices that were less than $3.12 per gallon is
Ответ: