The number of Science and Mathematics projects submitted by Model high school, Balak Vihar in last 17 years at the state level science exibition is : 4, 1, 5, 3, 1, 5, 4, 2, 3, 1, 3, 5, 4, 3, 2, 2, 3, Find the mean of the data.
A
5
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B
3
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C
7
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D
9
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Solution
The correct option is B 3 Mean(¯x)=∑fixiN = 5117 = 3