Question

Seema obtained the following scores (out of 100) on a set of spelling tests:

80, 85,90,71,60,100. What is her mean score?​

Answer 1

Answer:

Seema obtained the following scores (out of 100) on a set of spelling tests:

80, 85,90,71,60,100. What is her mean score?​

Sol-: Scores obtained by Seema = 80, 85,90,71,60,100.

       Therefore, her mean score = ?

       Thus, mean = sum of all observations/number of observations

        ∴ 80 + 85 + 90 + 71 + 60 + 100/6

        = 486/6

        = 81 Ans.

Therefore, her mean score = 81 Ans.

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