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Question
Alex, a P.E teacher, recorded the quantity of weight each student could lift. Find the number of students who lifted less than 50 kilograms, from the given stem-and-leaf plot.
Alex, a P.E teacher, recorded the quantity of weight each student could lift. Find the number of students who lifted less than 50 kilograms, from the given stem-and-leaf plot.
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Solution
The correct option is B 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.
The given stem-leaf-plot is
As per the key, the weights less than 50 kgs are 24 kg, 26 kg, 29 kg, 32 kg, 37 kg, 47 kg, and 49 kg.
Here, the data is spread from 24 to 78 kilograms.
The first 3 rows of data are less than 50 kilograms.
Let us count the number of students who lifted less than 50 kilograms.
The number of students who lifted less than 50 kilograms = 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.
The given stem-leaf-plot is
As per the key, the weights less than 50 kgs are 24 kg, 26 kg, 29 kg, 32 kg, 37 kg, 47 kg, and 49 kg.
Here, the data is spread from 24 to 78 kilograms.
The first 3 rows of data are less than 50 kilograms.
Let us count the number of students who lifted less than 50 kilograms.
The number of students who lifted less than 50 kilograms = 7
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