Total Fertility Rate (TFR) of 2.5 indicates that, on average, women are having:
A. 2.5 children
B. 2.5 daughters
C. 2.5 times the replacement level
D. 2.5 births per year
Answer: Option A
Solution (By JKSSB Mock Tests)
TFR estimates the average number of children a woman would have over her lifetime if she experienced current age-specific fertility rates; TFR=2.5 means 2.5 children per woman.
If a dataset has values ranging from 10 to 95 and you decide to use a class width of 10, how many classes would be needed for an exclusive frequency distribution?
Explanation:
Range = 95 - 10 = 85. Number of classes = Range / Class width = 85 / 10 = 8.5, rounded up to 9 classes to cover the entire data range without gaps.
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