Exercise 19 Page 367

Consider the given data set.

Grades (Out of $100$) On a Test
$96$	$74$	$97$	$80$	$62$
$84$	$88$	$53$	$77$	$75$
$89$	$81$	$52$	$85$	$63$
$87$	$95$	$59$	$83$	$100$

Since we have a numerical data set, we can split it into intervals and find the frequency of each interval. Therefore, another way to display the data is by using a histogram. To do so, let's first create a frequency table by using five intervals, beginning with $51-60.$

Score	Frequency
$51-60$	$3$
$61-70$	$2$
$71-80$	$4$
$81-90$	$7$
$91-100$	$4$

Let's now display the data in a histogram.

Please note that this is only one possible way to represent the data — there are many other possible ways to do it.