The heights of 10 boys were measured in cm are as follows - 135 , 150 , 128 , 139 , 141 , 132 , 151 , 146 , 149 , 143. Find the range of this data.
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15)Solve the equation :- 7 p + 19/2 = 13 ( answer in decimal)
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8
Answer:
143, 132, 149, 148, 151, 146, 135, 128, 139, 150
(i) the height of the tallest boy = 151 cm.
(ii) the height of the shortest boy = 128 cm.
(iii) the range of the data = 151 - 128 = 23 cm.
(iv) the mean height. =
(143 + 132 + 149 + 148 + 151 + 146 + 135 + 128 +139 + 150)/10 = 142.1 cm.
(v) How many boys are there whose heights are less than the mean = 4 boys
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Answered by
0
Answer:
range=128 to 151
p=0.5
Step-by-step explanation:
7p+19/2=13
7p+9.50=13
p=3.5/7
7p=3.5
p=0.5
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