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Find the mean and the mode of following: 4, 1, 7, 11, 9, 9, 7, 10, and 7.


1. 8.11, 9
2. 8.11, 7
3. 7.22, 9
4. 7.22, 7

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Best answer
Correct Answer - Option 4 : 7.22, 7

Given:

The given data,

4, 1, 7, 11, 9, 9, 7, 10, and 7

Concept used:

Mode is the most repeated value in a data

Formula used:

Mean = Sum of numbers / Number of observations

Calculations:

Mean = (4 + 1 + 7 + 11 + 9 + 9 + 7 + 10 + 7)/9

⇒ 65/9

⇒ 7.22

Values repeated in the given data,

⇒ 7 = 3 times

⇒ 9 = 2 times

The most repeated term,

Mode = 7

 The mean and mode is 7.22 and 7 respectively

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