Number Meeting Requirement From Histogram

To estimate the number of individuals meeting a certain requirement from a histogram, we need to change frequency density into frequency using the equation  
\[Frequency = Frequency Density \times Interval\]
.

histogram

To estimate the number of individuals taller than 100 cm from the histogram above we find:
Number of individuals between 100 cm and 105 cm
 
\[5 \times 1=5\]

Number of individuals taller than 105 cm cm
 
\[5 \times 2.4=12\]

There are 5+12=17 individuals taller than 100cm.

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