Which of the following is the median of the-distribution ? Scores : 2 5 7 8 10 Freq : 1 3 5 2 1
With total frequency N = 1 + 3 + 5 + 2 + 1 = 12, N/2 = 6 falls in the score interval of 7 (real limits 6.5 to 7.5, frequency f = 5, cumulative frequency below = 4). Using…
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Which of the following is the median of the-distribution ? Scores : 2 5 7 8 10 Freq : 1 3 5 2 1
Answer and explanation
Correct answer D
With total frequency N = 1 + 3 + 5 + 2 + 1 = 12, N/2 = 6 falls in the score interval of 7 (real limits 6.5 to 7.5, frequency f = 5, cumulative frequency below = 4). Using the grouped median formula, Median = 6.5 + ((6 - 4) / 5) × 1 = 6.5 + 0.4 = 6.9.
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