Iwill brainliest
a particular data set can be approximately described as a normal distribution.

the mean of the data set is 40 and one standard deviation is 5. about what percent of the numbers fall between 35 and 50?
a.) 53.2%
b.) 68.2%
c.) 77.4%
d.) 81.8%

81.8%

Step-by-step explanation:

Mean =

Standard deviation =

Now we are supposed to find out what percent of the numbers fall between 35 and 50

Substitute the values

Now for P(35<x<50)

Substitute x = 35

Substitute x = 50

So, P(-1<z<2)

P(z<2)-P(z<-1)

=0.9772-0.1587

=0.8185

=

=81.8%

Hence  81.8% percent of the numbers fall between 35 and 50

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step-by-step explanation:

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