Question

Question # 6: The weights of the 40 male students at a university are given in the following frequency table:
Weight
118-126
127-135
136-144
145-153
154-162
163-171
172-180
Frequency
3
5
9
12
5
4
2
Calculate the harmonic mean; Also Prove that sum of deviation of the observation from their mean is always equal to zero i.e. ∑ = 0

Answer 1

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Answer 2

Answer:

Mean= 5.7

Median= 12

Mode= 5

Step-by-step explanation:

Given: Weight and Frequency

To Find:

Mean, Median and Mode

Now, 3,5,9,12,5,4,2

Mean= 3+5+9+12+5+4+2/7

         = 40/7

         = 5.7

Median= 12

Mode= 5

Hence, Mean= 5.7

    Medium= 12

  Mode=5

To learn more about Frequency given below:

https://brainly.in/question/7850160

To learn more about Weight given below:

https://brainly.in/question/11475198

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