The list shows the final exam grades for Miss golds class. Make a stem and leaf plot for the data.
66, 98, 92, 91, 69, 55, 53, 90, 67, 74, 57, 58, 60, 59, 86, 92, 63, 55, 51, 84
Stem | Leaf
---- | ----
5 | 3, 5, 5, 7, 8, 9
6 | 0, 3, 6, 7, 9
8 | 4, 6
9 | 0, 1, 2
To create a stem and leaf plot for the given data, we need to separate each number into a stem and leaf. The stem represents the tens digit of the number, and the leaf represents the ones digit.
Arrange the data in ascending order:
51, 53, 55, 55, 57, 58, 59, 60, 63, 66, 67, 69, 74, 84, 86, 90, 91, 92, 92, 98
Now, we can create the stem and leaf plot:
Stem: 5
Leaves: 1, 3, 5, 5, 7, 8, 9
Stem: 6
Leaves: 0, 3, 6, 7, 9
Stem: 7
Leaves: 4
Stem: 8
Leaves: 4, 6
Stem: 9
Leaves: 0, 1, 2, 2, 8
The stem and leaf plot looks like this:
5 | 1 3 5 5 7 8 9
6 | 0 3 6 7 9
7 | 4
8 | 4 6
9 | 0 1 2 2 8
Each leaf corresponds to a number in the data set, and the stems group together the numbers with the same tens digit.