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horrorfan [7]
3 years ago
9

Compute the mean, variance, and standard deviation for the following data set. Round all answers to the nearest tenth. {85,95,90

,70,75,95,85,85,95,90,70,75}
Mathematics
1 answer:
alexandr1967 [171]3 years ago
3 0
Mean: 84.1
You add all the numbers together and divide by the amount of numbers

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Average of 57 39 76 87 91
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Add the numbers: 57 + 39 + 76 + 87 + 91 = 350;
Divide by how many numbers (i.e. we added 5 numbers): 350 ÷ 5 = 70;
<span>So the average is 70;</span>
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A sample of n = 8 scores has ss = 50. if these same scores were a population, then the ss value for the population would be ____
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