The heights of 7 students(in cm) are given as: 120,126,132.4,121.5,120.3,132,125. Find the mean and median for the data.
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Given : The heights of 7 students(in cm)
120,126,132.4,121.5,120.3,132,125.
To Find : Mean and median of data
Solution:
120,126,132.4,121.5,120.3,132,125
arrange data in order
120 , 120.3 , 121.5 , 125 , 126 , 132 , 132.4
Total Data = 7
Median is middle Data arranged in order which is 4th data
= 125
Median = 125
Mean = ( sum of all observations)/ Number of observations
= ( 120 + 120.3 + 121.5 + 125 + 126 + 132 + 132.4) /7
= 877.2/7
= 125.3
Mean of Data = 125.3
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