1. Construct a frequency distribution table and a histogram for the data on weights (in kg) of 20 students of a class. The weights are as follows 40, 38, 33, 48, 60, 53, 31, 46, 34, 36, 49, 41, 55, 49, 65, 42, 44, 47, 38, 39.
a. What is the size of the class intervals?
b. Which class has the lowest frequency?
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Answer:
a. The size of the class intervals = 8
b. The class that has the lowest frequency = 63-71
Step-by-step explanation:
The frequency distribution and histogram of given data is shown below.
The size of class interval is the difference between the lower value of two consecutive class interval.. Here it is 39 - 31 = 8
Frequency is the number of repetition of observation. The class that has the lowest frequency is 63-71
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