If each score in a set of data scores were increased by 8 points, how would this affect the mean and the standard deviation?
A) The mean would increase by 8, and the standard deviation would increase by 8.
B) The mean would increase by 8, but the standard deviation would increase by 64.
C) The mean would increase by 8, and the standard deviation would remain the same.
D) The mean would remain the same, and the standard deviation would increase by 8.

  (C)

Step-by-step explanation:

· So mean is the average number for mean to happen  you would need to add then dived by the number of numbers n the question.

·    The Standard Deviation is a measure of how spread out numbers are.

hope this help

geometry: triangles

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lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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