The weight of 50 students in pounds are given below: 82 95 120 174 179 176 159 91 85 175 88 160 97 133 159 176 151 115 105 172 170 128 112 101 123 117 93 117 99 90 113 119 129 134 178 105 147 107 155 157 98 117 95 135 175 97 160 168 144 175 If the data are arranged in the form of a frequency distribution with class intervals as 81-100, 101-120, 121-140, 141-160 and 161-180, then the frequencies for these 5 class intervals are
Answers
Answer:
81-100=12
101-120=12
121-140=6
141-160=8
161-180=10
Step-by-step explanation:
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jai hind
Following is the correct answer to the question:
Given:
The weight of 50 students in pounds is given below as follows;
82, 95, 120, 174, 179, 176, 159, 91, 85, 175, 88, 160, 97, 133, 159, 176, 151, 115, 105, 172, 170, 128, 112, 101, 123, 117, 93, 117, 99, 90, 113, 119, 129, 134, 178, 105, 147, 107, 155, 157, 98, 117, 95, 135, 175, 97, 160, 168, 144, and 175.
To Find:
The frequencies for these 5 class intervals are?
Solution:
The above question is from the topic of Statistics.
Here, we have to arrange and distribute the data in the frequency distribution table with the class intervals as given below:
We will, first of all, segregate the data in the given class intervals;
i.e., The weight of students belonging to the class interval 81-100 are:
82, 95, 91, 85, 88, 97, 93, 99, 90, 98, 95, and 97.
The weight of students belonging to the class interval 101-120 are:
120, 115, 105, 112, 101, 117, 117, 113, 119, 105, 107, and 117.
The weight of students belonging to the class interval 121-140 are:
133, 128, 123, 129, 134, and 135.
The weight of students belonging to the class interval 141-160 are:
159, 160, 159, 151, 147, 155, 157, 160, and 144.
The weight of students belonging to the class interval 161-180 are:
174, 179, 176, 175, 176, 172, 170, 178, 175, 168, 175.
The frequency distribution table for the above data is as follows:
Class Interval Frequency
1. 81-100 12
2. 101-120 12
3. 121-140 06
4. 141-160 09
5. 161-180 11
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