5 | 4,5,5,6,6,6,7,8,8,9
6 | 0,0,1,1,2,2,2,3,4,4,4,5,6,7
7 | 0,1,1,1
How do you find the mean of this stem-and-leaf plot?
Please answer!!
add all the numbers and divide by the number of leaves.
*a stem is on the left of the line and stands as a digit in the 10s place. EX. 5/4 would be 54.
To find the mean of the stem-and-leaf plot, you first need to understand how the plot is constructed. In this plot, stems represent the tens digit of the number, and leaves represent the ones digit.
Once you have the plot, you can calculate the mean by following these steps:
1. Multiply each stem by 10 and add the corresponding leaves. For example, the first stem 5 has the leaves 4, 5, 5, 6, 6, 6, 7, 8, 8, and 9. Adding these to 50 gives us a sum of 64.
2. Repeat this process for all the other stems. For the second stem, 6, the leaves are 0, 0, 1, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, and 7. Adding these to 60 gives us a sum of 51.
3. For the third stem, 7, the leaves are 0, 1, 1, and 1. Adding these to 70 gives us a sum of 73.
4. Add up all the sums from step 2. In this case, 64 + 51 + 73 = 188.
5. Divide the total sum by the number of data points. In this case, there are 24 data points.
6. Calculate the mean by dividing the sum by the number of data points. In this case, 188 ÷ 24 = 7.83 (rounded to two decimal places).
Therefore, the mean of this stem-and-leaf plot is approximately 7.83.