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145 150 155 160 165 170 175 180 185 190 195 Q1. Find the variance of...

145 150 155 160 165 170 175 180 185 190 195

Q1. Find the variance of the height.

=> I knew the answer is 250.

Q2. From the population in the above [1], we took a sample, which is as follows:

150 160 170 180 190

Find the sample variance of the height.

Math   Statistics-And-Probability   
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