rosas lawn mowing. the stem - and - leaf plot shows what rosa was paid for mowing lawns. key: 1|5 = $15…

rosas lawn mowing. the stem - and - leaf plot shows what rosa was paid for mowing lawns. key: 1|5 = $15. what is the median of the payments he received? 40 42.5 40.9 45

rosas lawn mowing. the stem - and - leaf plot shows what rosa was paid for mowing lawns. key: 1|5 = $15. what is the median of the payments he received? 40 42.5 40.9 45

Answer

Explanation:

Step1: Write out all data values

The stem - and - leaf plot gives the data values: 15, 23, 25, 30, 30, 33, 35, 35, 38, 40, 40, 45, 45, 45, 47, 50, 51, 53, 55, 58, 65.

Step2: Determine the number of data points

There are (n = 21) data points.

Step3: Find the position of the median

For a set of (n) data points (where (n) is odd), the median is the (\left(\frac{n + 1}{2}\right))-th value. So, (\frac{21+ 1}{2}=11) - th value.

Step4: Order the data and find the median

After ordering the data (already done in Step1), the 11 - th value is 40.

Answer:

40