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Given the following values              28,  32,  33,  23,  20,  14The population mean and population standard deviation are approximately:

Question

Given the following values              28,  32,  33,  23,  20,  14The population mean and population standard deviation are approximately:

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Solution 1

To calculate the population mean (average), you add up all the numbers and then divide by the number of values.

Step 1: Add up all the numbers: 28 + 32 + 33 + 23 + 20 + 14 = 150

Step 2: Divide by the number of values: 150 / 6 = 25

So, the population mean is 25.

To calculate the population standard deviation, you first subtract the mean from each number and square the result, then find the average of these squared differences, and finally take the square root of that average.

Step 1: Subtract the mean from each number and square the result: (28-25)^2 = 9 (32-25)^2 = 49 (33-25)^2 = 64 (23-25)^2 = 4 (20-25)^2 = 25 (14-25)^2 = 121

Step 2: Find the average of these squared differences: (9 + 49 + 64 + 4 + 25 + 121) / 6 = 45.33

Step 3: Take the square root of that average: sqrt(45.33) = 6.73

So, the population standard deviation is approximately 6.73.

This problem has been solved

Solution 2

To calculate the population mean (average), you add up all the numbers and then divide by the number of values.

Step 1: Add up all the numbers: 28 + 32 + 33 + 23 + 20 + 14 = 150

Step 2: Divide by the number of values: 150 / 6 = 25

So, the population mean is 25.

To calculate the population standard deviation, you first subtract the mean from each number and square the result. Then,

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