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Lerok [7]
3 years ago
13

Priya is playing a game where she earns online badges for scoring higher than the mean score on a level. After the tenth level,

she scores 3,540 points, which is 2 standard deviations above the mean score of 3,110 points.
What is the standard deviation of scores for the tenth level?

a.)215
b.)311
c.)354
d.)430
Mathematics
2 answers:
Lisa [10]3 years ago
4 0

Answer: Option 1(A)

Got it right on ED, Good luck!! :)

Vlad [161]3 years ago
3 0
If score of 3,540 points is 2 standard deviations above the mean score of 3,110, then:
3,110 + 2 s= 3,540
2 s = 3,540 - 3,110 = 430
s = 430 : 2
s = 215
Answer: A) The standard deviation is 215. 
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