Question

Find the mean of the following scores.
12, 8, 13, 15, 9, 16, 11​

Answer 1

Answer:

Explanation:

10,11,11,12,13,13,14,16,16,17,17,18

median =  (13  + 14)/2 = 13.5  

mean =  

12

10+11+11+12+13+13+14+16+16+17+17+18

​  

 

mean = 14  

mean deviation = 14-13.5 = 0.5  

2) 36,42,45,46,46,49,51,53,60,72

median = (46+49)/2 = 47.5

mean=  

10

36+42+45+46+46+49+51+53+60+72

​  

 

mean = 50  

mean deviation = 50-47.5 = 2.5

Answer 2

Answer:

mean=

$\frac{12 + 8 + 13 + 15 + 9 + 16 + 11}{7}$

$= \frac{87}{7}$

$= 12.42$

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