In Mr. Huanabe’s class, students are split into groups of 8. Each group member measured the length of his or her hair. Veronica
had the longest hair in her group, with a length of 42 inches. The other seven group members had hair lengths measuring 13, 23, 24, 5, 5, 13, and 8 inches. Find the mean, median and mode without and with Veronica’s hair length, and explain the changes.
Neeeeed Help..
Neeeeed Help..
1 answer:
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Answer:
a) 910
b) 828100
c) 144320
Step-by-step explanation:
a. ∑y
This is the sum of all values of y. So
b. (∑y)^2
This is the square of the sum, so the square of 910, that we found in the previous item.
910² = 828100
c. ∑y^2
This is the sum of the squares of each amount spent. So