MTH302 Assignment No.2 Spring2020

MTH302 Assignment No.2 Spring2020

Question 1

 The marks obtained by 30 students in a subject are given below:
15,20,21,22,35,40,45,16,31,22,26,29,18,41,49,43,48,23,28,32,36,38,24,29,30,46,42,44,25,50
Arrange the data into 8 classes with equal class interval and then find the mean of this grouped data.
Solution:
Arrangement of Data in 8 Classes (Conversion of Ungroup Data into Grouped Data):
Size of Interval= Range of data ÷ Number of classes
 =(Maximum of data-Minimum of data) ÷ 8
=(50-15) ÷ 8
=35 ÷ 8
=4.375
Therefore size 5 is taken

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