Question

question 9 (1 point)
the miles per gallon rating for 30 cars are shown below (lowest to highest).
19, 19, 19, 20, 21, 21, 25, 25, 25, 26, 26, 28, 29, 31, 31, 32, 32, 33, 34, 35, 36, 37, 37, 38, 38, 38, 38, 41, 43, 43, 61
a student took the data and created the following stem and leaf plot.
stem leaf
1 9 9 9
2 0 1 1 5 5 5 6 6 8 9
3 1 1 2 2 3 4 5 6 7 7 8 8 8 8
4 1 3 3
6 1
which of the following best explains what is wrong with the students work.
there is nothing wrong with the work.
the student should not be repeating values in the stem and leaf plot.
even though there was not any values in the 50s the student needs to include a stem of 5 to show the gap in the distribution in values.
the student should include the stem of 5 and put a 0 as the leaf as there are zero fifties.

Explanation:

In a stem - and - leaf plot, it is important to represent all possible stems to show the distribution of data. Since there are no values in the 50s for this data set, a stem of 5 should be included to indicate the gap in the distribution.

Answer:

Even though there was not any values in the 50's the student needs to include a stem of 5 to show the gap in the distribution in values.