01-12-2013, 06:40 PM
a) Consider 48 customers entered in a super store in a week. Find the Stem and Leaf Display for the following data:
23 20 31 22 42 25 20 24 28 33 31 21
23 37 25 27 40 21 22 20 20 20 23 31
32 18 19 22 27 22 26 22 23 23 21 41
24 20 22 18 21 34 23 32 20 25 38 23
b) Also find the mean, median and mode of the above data.
Question # 2 (Marks: 10)
The weights and heights of 10 animals are recorded as follows:
Weight(X) Length(Y)
4 6
6 7
8 9
8 7
10 10
12 10
16 14
16 18
18 18
20 20
Find out the coefficient of correlation and also determine that whether the correlation is positive, negative or there is no correlation between the measured variables.
23 20 31 22 42 25 20 24 28 33 31 21
23 37 25 27 40 21 22 20 20 20 23 31
32 18 19 22 27 22 26 22 23 23 21 41
24 20 22 18 21 34 23 32 20 25 38 23
b) Also find the mean, median and mode of the above data.
Question # 2 (Marks: 10)
The weights and heights of 10 animals are recorded as follows:
Weight(X) Length(Y)
4 6
6 7
8 9
8 7
10 10
12 10
16 14
16 18
18 18
20 20
Find out the coefficient of correlation and also determine that whether the correlation is positive, negative or there is no correlation between the measured variables.