Consider the following data:
14,4,6,10,3,5
Step 1 of 3: Calculate the value of the sample variance. Round your answer to one decimal place.
Step 2 of 3: Calculate the value of the sample standard deviation. Round your answer to one decimal place.
Step 3 of 3: Calculate the value of the range.
Solution:
Step 1 of 3:
= (X) / n
= ( 14+4+6+10+3+5) / 6
= 72/6
= 7
Sample Variance :
= ( X - )2 / n - 1
= ( 14 - 7 )2 + ( 4 - 7 )2 + ( 6 - 7 )2 + ( 10 - 7 )2 + ( 3 - 7 )2 + ( 5 - 7 )2 / 6 - 1
= 88 / 5
= 17.6
Step 2 of 3:
Sample standard deviation:
s = ( X - )2 / n - 1
= Sample variance
= 17.6
= 4.2
Step 3 of 3:
Range:
Range = Max - min
= 14 - 3
= 11
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