**IGNOU BCA SOLVED ASSIGNMENT 2017-18**

BCS-040 Statistics Techniques

**QUESTIONS SOLVED IN ASSIGNMENT:**

1. In a study on the Per capita Income for a particular year in a city, the following weekly

observations were made.

Per Capita Income (Rs.) -(1K=1000)

14K-15K 15K-16K 16K-17K 17K-18K 18K-19K 19K-20K

Number of Weeks 5 10 20 9 6 2

Draw a histogram and a frequency polygon on the same scale

2. Do you find any correlation between ages and playing habits of the students, whose distribution

according to age groups is given in the following table

Age of groups(Years) 15-16 16-17 17-18 18-19 19-20 20-21

Number of Students 200 270 340 360 400 300

Number of Regular players 150 152 170 180 180 120

3. Data are given below shows statistics viz. standard deviation & average marks secured by

students, in the examination of subject A and B

SUBJECT A SUBJECT B

MEAN MARKS 36 85

STANDARD DEVIATION 11 8

Assuming the Coefficient of correlation between A and B = ±0.66

Perform the following tasks:

i) Determi…

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