Question

the ages of the people who attended a weekly yoga class at the local yoga studio are shown in the table below.
table with age - related numbers
which data display can be used to find the median for the ages of the yoga students?
i. box - plot
ii. dot - plot
iii. histogram
a. i and ii
b. i and iii
c. ii and iii
d. i, ii, and iii

Explanation:

Step1: Recall data - display properties

A box - plot shows the five - number summary (minimum, first quartile, median, third quartile, maximum) of a data set directly. A dot - plot shows each data point, and we can order the data points from it to find the median. A histogram groups data into intervals and does not show individual data points clearly enough to easily identify the median.

Step2: Analyze each option

A box - plot (I) can be used to find the median as it marks the median value. A dot - plot (II) can also be used to find the median by arranging the dots in order. A histogram (III) is not suitable for finding the median directly as it is based on intervals.

Answer:

C. I and II