makennahudson94
10.07.2019 •
Mathematics
Apopulation of n = 15 scores has a mean of μ = 8. one score in the population is changed from x = 20 to x = 5. what is the value for the new population mean
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Ответ:
(Making Sigma x The subject of the formula)
Summation of x = Mean × n
= 8 × 15
The summation of all the scores= 120
The change of x is 20-5 = 15
New summation = 120 - 15 = 105
Using formula:
105 ÷ 15 = 7
ų = 7
Ответ:
35%
Step-by-step explanation:
40 +20 +5= 65
100-65=35%
hope dis helps!