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pable 3. Scores obtained by 21 students in a Math quiz
(x-3) RY FOX - y
40
443
70 54 7056
16
528
256
52
A 1730
$38.24
AX-3 1.372
**3
50
D. 34.6
D6.15
46. What is the mean score of the students?
B. 35.6
C. 44.6
47.What is the value of the Variance?
A.40.24
B.4.24
C.44.2
48. What is the Standard Deviation of the scores of the students?
A.6.51
B. 5.61
C. 4.65
49. How many were included in the sample?
A.5
B.50
C. 1730
50. Which of the statement below is true ?
A. The value of the variance is lesser than the mean
B. The standard deviation of the given data is lesser than 5
C. The mean of the given data is lesser than 20
D Ali of the above
E. None of the above
D1972​