Question

following the marks obtained by 15 students in maths (out of 50 )48,47,38,12,18,35,28,25,26,45,44,24,22,20,21 ? Find the range . Calculate the mean​

Answer 1

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Answer 2

Answer:

Range = 36 Ans.

Mean = 30.2 Ans.

Step-by-step explanation:

Range = Highest observation - Smallest observation

Range = 48 - 12

Range = 36

$mean \: = \: \frac{sum \: of \: observation \:}{no. \: of \: observation} \\ = \frac{48 + 47 + 38 + 12 + 18 + 35 + 28 + 25 + 26 + 45 + 44 + 24 + 22 + 20 + 21}{15} \\ = \frac{453}{15} \\ = > 30.2 \: \: ans.$

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