a. The mean is 123.9
b. The median is 123.5
c.mode=108,119,128
d. The range is 55
e. The variance is 246.341
f. The standard deviation is 15.7
g. The coefficient of variation is 12.672 We have given data of 24 students
arranging in ascending order
97,98,106,108,108,110,111,115,119,119,121,122,125,126,128,128,130,134,140,141,142,143,151,152.
What is the formula for mean?
[tex]Mean=\frac{sum of data set}{number of data set}[/tex]
[tex]X=\frac{115+119+........+126}{24} \\X=123.91[/tex]
a. The mean is 123.9
[tex]median=\frac{12 th term+13th term}{2} \\=\frac{247}{2} \\=123.5[/tex]
b. The median is 123.5
C . mode
first model=108
second model=119
third model=128
mode= most number of times appear data
Similarly use the formula and find
d. The range is 55
e. The variance is 246.341
f. The standard deviation is 15.7
g. The coefficient of variation is 12.672
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