Finding Mean for Grouped Data When Class Intervals Are Not Given
What is the a...
Question
What is the average of first five composite numbers ?
A
3
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B
7.4
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C
5.6
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D
7
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Solution
The correct option is B 7.4 The first five composite numbers are 4, 6, 8, 9, 10.
Average or mean of these numbers = Sumoffivecompositenumbers5=4+6+8+9+105=375=7.4The average of first five composite numbers is 7.4