Question

If we draw a histogram for the frequency distribution table below, what is the value of a, b, c and d?

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• A. a - 11; b - 7; c - 45; d - 15
• B. a - 7; b - 11; c - 45; d - 30
• C. a - 7; b - 11; c - 15; d - 30
• D. a - 3; b - 11; c - 15; d - 30

Answer 1

The correct option is C

a - 7; b - 11; c - 15; d - 30

The horizontal axis represents class intervals and the tally marks are equal to frequency. So, corresponding to the frequency distribution table, the height of the histogram is frequency.

So, a = 7; b = 11; c = 15; d = 30