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The stem-and-leaf plots below show the scores of 15 ninth graders and 15 tenth graders in a competition.
Competition Scores
for Ninth Graders
Competition Scores
for Tenth Graders
Stem Leaf
Stem Leaf
5
23444
5
467889
4
2468
4
1222789
3
35555
89
KEY: 516 represents 56
How much greater is the mode of the tenth graders' scores than the mode of the ninth graders' scores?
02

Answer 1

Based on the given stem and leaf plot of the scores of the ninth and tenth graders, the difference between the tenth and ninth-grader modes is 7.

What is the tenth grade mode?

The mode is the score that appears the most times.

From the stem and lead plot, this number is 42 as it appears 3 times. This is shown by the 4th stem having 2 leafs three times.

What is the ninth grader mode?

The third stem has five leafs four times so the mode would therefore be 35.

The difference is then:

= 42 - 35

= 7

Find out more on stem and leaf plots at https://brainly.com/question/8649311.

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