pinkpen85 pinkpen85

01-02-2017
Mathematics

contestada

On a recent test, students had the following scores: 85, 100, 92, 96, 87, 94, 75. For these scores, find: a) Mean b) Variance = sum of (Difference from the Mean)^2 c) Standard Deviation = Square root of the variance

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charlottekrist charlottekrist

01-02-2017

a. aprox. 89.86
b. 25
c. 5

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jacquelinemilenge10 jacquelinemilenge10

26-01-2022

Answer:

Mean= 89.9

Step-by-step explanation:

B. n:7

C. sum of ( difference form the Mean) divided by(n): 629 = variance D. standard deviation= 69.1

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