Calculate the mean and the standard deviation from the following data:
52,50,56,68,65,62,57,70,50,70
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Calculate the mean and the standard deviation from the following data:
52,50,56,68,65,62,57,70,50,70
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Verified answer
Mean is 60standard deviation is 7.6
find mean using formula total sum of number/ how many numbers
then standard deviation
mean is 60
now minus 60 from every number
52-60 = -8² = 64
50-60 = -10² = 100
56-60 = -4² = 16
68-60 = 8² = 64
65-60 = 5² = 25
62-60 = 2² = 4
57-60 = -3² = 9
70-60 = 10² = 100
50-60 = -10² = 100
70-60 = 10² = 100
then total all the number
we get 582
now we divide again with how many number are there
= 582/10
= 58.2
for finding standard deviation
now √58.2 = 7.62
answer complete
Mean is 60
Standard deviation is 7.6288
Hope it helps