Compute the population standard deviation of the test scores in Table 8.

Approach Using Formula (1)

Step 1 Create a table with four columns. Enter the population data in Column 1. In Column 2, enter the population mean.

Step 2 Compute the deviation about the mean for each data value, x_i - μ. Enter the result in Column 3.

Step 3 In Column 4, enter the squares of the values in Column 3.

Step 4 Sum the entries in Column 4, and divide this result by the size of the population, N.

Step 5 Determine the square root of the value found in Step 4.

Transcribed Image Text:

Table 8 Student Score 1. Michelle 82 2. Ryanne 77 3. Bilal 90 4. Pam 71 5. Jennifer 62 6. Dave 68 7. Joel 74 8. Sam 84 9. Justine 94 10. Juan 88