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1. (a) Illustrate graphically the distinction between a frequency polygon, a histogram and an ogive curve. Comment on their uses.
(b) Prepare a more than ogive curve with imaginary figures.
(c) Explain the various diagrams which are used in statistics to show the salient features of data.
18. Represent the following data by a suitable diagram:
Item of expenditure Family Family Family
A B c
Food 20 60 120
Clothing 4 15 70
House Rent 3 20 80
Education 2 6 25
Books 2 10 70
Misc 2 8 50
3. Represent the following data by a suitable diagram: GNP-Industrial origin-percentages
Countries
Agrlcy,lture
Industry
Services
Others
England
3
40
44
13
America
35
61
I
Japan
6
48
43
India
45
19
28
8
1. You are the principal of a large urban high school and wish to do a parent survey to determine how parents feel about same-sex classes. Your budget does not allow you to send out surveys to all parents. You are considering one of two procedures..
The state's smallest animal is a red-tailed gerbil, with a mean weight of 2.5 grams and a standard deviation of 0.25 grams. Assuming that the weights are normally distributed
estimate the time required to provide a given laboratory procedure, suppose that we measured the amount of time required when the service was provided on 60 occasions.
As number sampled is large and those advocating a strike constitute over 50%, can we suppose that majority of all steelworkers favour a strike?
an investigator hypothesizes that cholesterol levels in children migt be affected by educating their parents on proper
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water at 20c exits a circular tap moving straight down with a flow rate of 10.5 cm3s a if the diameter of the tap is
the fda tests the tobaccos in two different types of cigars for nicotine content in mg and obtained following results.
Test whether the music reduces studying capacity at a .05 level of significance.
Calculate the Regression for Abortion Restrictions and Church Attendance
Estimate is too low for households in British Columbia. Can the value 0.64 be rejected if a survey of 490 homes in BC yields 331 with one or more lawn mowers?
Let p vary from 0.02 to 0.20 in increments of 0.02. b) Sketch the graph of the probabilities of the lot acceptance as the p value varies from 0.02 to 0.20.
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