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Question

A random survey of the number of children of various age groups playing in park was found as follows:

Age (in years)Number of children1252333565712710910151015174

Draw a histogram to represent the data above.

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Solution

Here, it can be observed that the data has class intervals of varying width. The proportion of children per 1 year interval can be calculated as follows.

Age (in years)Frequendy (Number of children)Width of classLength of rectangle12515×11=523313×11=335626×12=35712212×12=6710939×13=3101510510×15=21517424×12=2

Taking the age of children on x-axis and proportion of children per 1 year interval on y-axis, the histogram can be drawn as follows.


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