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Q. Observe the given frequency distribution table and answer the question given below:-

Class Interval Frequency

80-84 2

75-79 3

70-74 5

65-69 12

60-64 8

55-59 6

50-54 4

_________

N=40

1) calculate the median of the given distribution and interpret the result.

2) If mean = 68 and S.D = 8.2 , interpret with respect to the normal probability curve.

3) If P43 = 74 , interpret.

4) In a Geography Test, Rajesh's Pr is 36 and Rohan's Pr is 63, interpret and compare their performance.

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13y ago
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