Assignment: 2 (Total Marks: 20) Q.1 Calculate the mean, the median and the mode for the distribution of weights of 150 students from the data given below and interpret the results: Weight (in KG) 30-40 No. of Students 18 40-50 37 50-60 45 60-70 27 70-80 15 80-90 8 Q.2 On the basis of following measures of central tendency, indicate whether or not there is evidence of skew and if so, indicate the directions: 4 i. Mean= 56 Median-62 Mode=68 ii. Mean= 68 Median=62 Mode=56 iii. Mean= 62 Median=62 Mode=62 Q.3 Calculate standard deviation and variance for the following age distribution of 80 people and interpret the results: No. of people Age 44-46 46-48 3. 24 48-50 27 50-52 21 52-54 5 Q. 4. a. What do you understand by standard normal distribution? Draw a normal curve locate the area under the curve and discuss the characteristics of it. 4x2= 8 b. b. With a mean of 50 and with a standard deviation of 15; what proportion of the scores in the distribution will fall above the score of 67?
Assignment: 2 (Total Marks: 20) Q.1 Calculate the mean, the median and the mode for the distribution of weights of 150 students from the data given below and interpret the results: Weight (in KG) 30-40 No. of Students 18 40-50 37 50-60 45 60-70 27 70-80 15 80-90 8 Q.2 On the basis of following measures of central tendency, indicate whether or not there is evidence of skew and if so, indicate the directions: 4 i. Mean= 56 Median-62 Mode=68 ii. Mean= 68 Median=62 Mode=56 iii. Mean= 62 Median=62 Mode=62 Q.3 Calculate standard deviation and variance for the following age distribution of 80 people and interpret the results: No. of people Age 44-46 46-48 3. 24 48-50 27 50-52 21 52-54 5 Q. 4. a. What do you understand by standard normal distribution? Draw a normal curve locate the area under the curve and discuss the characteristics of it. 4x2= 8 b. b. With a mean of 50 and with a standard deviation of 15; what proportion of the scores in the distribution will fall above the score of 67?
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Answer the question Q.2
Transcribed Image Text:Assignment: 2 (Total Marks: 20)
Q.1 Calculate the mean, the median and the mode for the distribution of weights of
150 students from the data given below and interpret the results:
Weight (in
KG)
30-40
No. of
Students
18
40-50
37
50-60
45
60-70
27
70-80
15
80-90
8
Q.2 On the basis of following measures of central tendency, indicate whether or
not there is evidence of skew and if so, indicate the directions:
4
i.
Mean= 56 Median-62
Mode=68
ii.
Mean= 68
Median=62
Mode=56
iii.
Mean= 62
Median=62
Mode=62
Q.3 Calculate standard deviation and variance for the following age distribution of
80 people and interpret the results:
No. of people
Age
44-46
46-48
3.
24
48-50
27
50-52
21
52-54
5
Q. 4. a. What do you understand by standard normal distribution? Draw a normal
curve locate the area under the curve and discuss the characteristics of it. 4x2= 8
b. b. With a mean of 50 and with a standard deviation of 15; what proportion
of the scores in the distribution will fall above the score of 67?
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