An easy way to find the solution is by dividing the number by how many consecutive integers you need. Then basically find the integers around that number. To check your answer, add the three integers up to see if they equal your beginning number. Your solution is 52, 54, 56.
The sample standard deviation is 7.6 and the sample variance is 2.76.
for the scores 5, 2, 2, 7, 9.
According to the question,
Sample size n = 5
Sample Mean = [5+2+2+7+9]/5
= 5
Formula for sample standard deviation = (x-mean)²/n
= [(5-5)²+(2-5)²+(2-5)²+(7-5)²+(9-5)²]/5
= [0+9+9+4+16]/5
= 38/5
= 7.6
Formula for sample variance = √sample standard deviation
=√7.6
=2.76.
Hence, the sample standard deviation is 7.6 and the sample variance is 2.76.
Learn more about standard deviation and variance
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11,695 ft²
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