Question

Below is a stem and leaf plot of the number of grams of fat in breakfast meals offered at a local fast food restaurant.

1 | 0 0 2 4
2 | 2 5 6 8 9 9
3 | 3 4 6
4 | 0 1

Determine the third quartile of the original data.

Answer 1

The third quartile of the original data represented in the given stem and leaf plot is 8 grams of fat.

Step-by-step explanation:

To determine the third quartile of the original data represented in the given stem and leaf plot, we need to find the value that separates the upper 25% of the data from the lower 75% of the data. In the given plot, the third quartile is represented by the value 8. This means that 75% of the data have a value less than or equal to 8 grams of fat.

To find the third quartile (Q3) from a stem-and-leaf plot, you need to arrange the data in ascending order and then locate the position of the third quartile. The third quartile is the median of the upper half of the data.