Please answer the question number 4; 6

(4).
 

Mean enrolment =



(6).

 

Arranging the heights of 10 girls in an ascending order,

128, 132, 135, 139, 141, 143, 146, 149, 150, 151

(i) Height of the tallest girl = 151 cm

(ii) Height of the shortest girl = 128 cm

(iii) Range = (151 − 128) cm

= 23 cm

(iv) Mean height = 

(v) The heights of 5 girls are greater than the mean height (i.e., 141.4 cm) and these heights are 143, 146, 149, 150, and 151 cm.

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Q4: Mean = 1555+1670+1750+2013+2540+ 2825 / 6 = 12353 / 6 = 2059 . Q6: 1= 151 ; 2 = 128 ; 3 = 141.4 cm ; 5 = 5.
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