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Question
Alex, a P.E teacher, recorded the amount of weight that each student could lift. Find the number of students who lifted less than 40 pounds from the given stem-leaf-plot.
Alex, a P.E teacher, recorded the amount of weight that each student could lift. Find the number of students who lifted less than 40 pounds from the given stem-leaf-plot.
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Solution
The correct option is C 7
In a stem-and-leaf plot, the stem tells the first part of the number and the leaf tells the last digit of the number.
As per the key, the weights less than 40 lbs are 14 lb, 16 lb, 19 lb, 22 lb, 27 lb, 37 lb, and 39 lb
Here, the data is spread from 14 pounds to 68 pounds.
The first 3 rows of data are less than 40 pounds.
Let us count the number of students, who lifted less than 40 pounds.
The number of students who lifted less than 40 pounds = 7
In a stem-and-leaf plot, the stem tells the first part of the number and the leaf tells the last digit of the number.
As per the key, the weights less than 40 lbs are 14 lb, 16 lb, 19 lb, 22 lb, 27 lb, 37 lb, and 39 lb
Here, the data is spread from 14 pounds to 68 pounds.
The first 3 rows of data are less than 40 pounds.
Let us count the number of students, who lifted less than 40 pounds.
The number of students who lifted less than 40 pounds = 7
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