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PLZ HELP PLZ

The stem-and-leaf plot shows the scores of a class of sixth graders on a math test.


How many scores were above 64?

PLZ HELP PLZ The stem-and-leaf plot shows the scores of a class of sixth graders on-example-1

2 Answers

3 votes

Answer:

65, 73, 74, 77, 87, 88, 91, 93, 93, 97, 99, 99.

Explanation:

A stem-and-leaf plot is a format used to present quantitative data, where stem values are tenths and leaf values are units. For example, in this case, the first value is 32, 3 tenths (stem) and 2 units (leaf). So, each value in the stem colum is tenth and each number in leaf colum represents unit of those tenths.

Now, to find all numbers above 64, we observe the number 6 in the stem colum, then we count all leaf numbers in that level and above.

Observe that there are 13 values when 6 as tenth, but the first one doesn't count because its unit is 4, and we need all numbers ABOVE 64.

Therefore, there are 12 numbers above 64 which are:

65, 73, 74, 77, 87, 88, 91, 93, 93, 97, 99, 99.

User Dontocsata
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5.5k points
4 votes

The single digit to the left of the vertical line is the tens units, the numbers to the right are the ones.

The scores above 64, would be 65, 73, 74, 77, 87, 88, 91, 93, 93, 97, 99, 99

A total of: 12 scores.

User Kim Hoang
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5.0k points