Suppose that pade point werages of undergraduate students tone university have a beill shaped distribution with a mean of 2.55 and a standard den 0.44 Using the empirical rule, what percent of the students have grade point averages that are between 1.23 and 3.877

ƒ = 0.03b

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step-by-step explanation:

substitute,

circle 1 = 5

circle 2 = 20

circle 3 = 44

in this case no matter how you add, you will always get a perfect square..

hence proved

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answer

a) the midrange of the data set shown is 85.5

step by step explanation

let's find the midrange.

the midrange is nothing but add the greatest value and the least value, then divide it by 2.

here the greatest value = 99

the least value = 72

midrange = (99 + 72)/2

= 171/2

midrange = 85.5

you.