yousifgorgees101
14.10.2019 •
Mathematics
The heights, in cm, of some pupils are:
149 111 171 166
152
129
162
144
a)
find the mean height of the pupils.
b)
find the median height of the pupils.
c)
find the range of the heights of the pupils.
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Ответ:
Step-by-step explanation:
Mean = 149 + 111 +171 + 166 + 152 + 129 +162 +144 /8 =1184/8
=148
Median:
Arrange in ascending order:
111, 129, 144, 149, 152, 162, 166, 171
Median = 149+152/2 = 301/2 = 150.5
Range = 171 - 111 = 60
Mean is finding average. ie find the sum and divide by the number of items.
Median is the middle number after arranging in ascending or descending order. if no. of items is odd, then median is the middle number. If no. of items is even, then average of the middle two terms.
Range is difference between highest and lowest.
Ответ:
R.i.p may he fly hight so sorry for your lost