Average rainfall on a city from Monday to Saturday is 0.3 inch. Due to heavy rainfall on Sunday, the average rainfall for the week increased to 0.5 inch. What was the rainfall on Sunday
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Quantitative Methods
Total Marks: 80
Note : All Questions are
Compulsory
Each Question Carries Equal
Marks
1. Three numbers, whose sum
is 12, are in AP. If 1,2 and 6 are added to them, the resultin g numbers are in
GP. Find the numbers
2. Average rainfall on a
city from Monday to Saturday is 0.3 inch. Due to heavy rainfall on Sunday, the
average rainfall for the week increased to 0.5 inch. What was the rainfall on Sunday?
3. Calculate median from
the following data Marks 10-25 25-40 40-55 50-70 70-85 85-100 Frequency 6 20 44
26 3 1
4. Given the following
results of the height and weight of 1000 students. The mean height is 170 cm,
the mean weight is 75 kg. the standard deviation of the height and weight are 6
cm and 6 kg respectively r = 0.6. amit weighs 50 kg, sumeet is 1.5 m tall.
Estimate the height of Amit from his weight and the weight of sumeet from his
height
5. In a sample of 500
people from a village in rajasthan, 280 are found to be rice eaters and rest wheat
eaters. Can we assume that both the food articles are equally popular?
6. In a binomial
distribution 31% of the items are under 45 and 8% are over 64. Find the mean and
variance of the distribution
7. In a large number of group of children 55%
are under 60 cm heighty nd 40% are between 60 and 65 cm. Assuming a normal
distribution, find the mean and SD of height
8. Construct index number
form the data by applying Marshall edge worth method Commodity Price 2004
Quantity Price 2006 quantity
A 2 8 4 6
B 5 10 6 5
C 4 14 5 10
D 2 19 2 13
Assignment Solutions, Case study Answer sheets
Project Report and Thesis contact
ARAVIND – 09901366442 – 09902787224
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