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ASHLYANGELOCUYAIN
Answered

For numbers 4-6, the following are scores of students in their quiz:
7, 11, 8, 8, 19, 15, 7, 9, 9, 20, 17, 14
4. What is the value of μ? (2 points)
A. 10.4 C. 12 B. 11 D. 14.4
5. What is the value of the population variance? (2 points)
A. 21
B. 22.91
6. What is the value of ? (2 points)
A. 4.58 B. 4.79
C. 23.43 D. 27.33
C. 4.84 D. 5.23o
with solution

Sagot :

Answer:

4. Mean = 12, 5. Population Variance = 22.91, 6. Population Standard Deviation = 4.79

Step-by-step explanation:

4. u = E x/ n = 7+11+8+8+19+15+7+9+9+20+17+14 / 12 = 144 / 12 = 12

5. Variance = ( x - x)^2 / n-1

                   =  252/ 12 - 1

                   = 252/11

                   = 22.91

6. Population Standard Deviation = Square root of the variance

                                                           = square root of 22.91

                                                          = 4.79

                                                           

                 

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