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STA 301 Quiz # 01 Opening date 20-11-2014 close date 21-11-2014 11.59pm Share your quizes and discuss
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+ Click Here to Search (Looking For something at vustudents.ning.com?) + Click Here To Join (Our facebook study Group)The following data shows the number of hours worked by 120 mathematical students. Number of Hours Frequency 0 - 5 10 5 - 10 50 10 - 15 40 15 - 20 20 What is its class interval?
The mode value from raw data can be obtained by the help of:
For the following Distribution. Items Expenditure Food 50 Clothing 30 House Rent 20 Fuel and Light 15 Miscellaneous 35 Total 150 What will be the angle of Miscellaneous for constructing the pie chart?
The Sum of the deviations of the observations from their mean is:
For given data, discuss the shape of the distribution: X f 0 2 1 3 2 5 3 9 4 13 5 15 6 20
Which of the following is Not a common measure of central tendency?
Which of the following is a true statement about the median?
When a frequency distribution involves "open-end" classes, then which average is appropriate?
Mid point is equal to:
From the following table, what is lower class boundry when mode is calculated? Class Boundaries Frequency 20 - 30 8 30 - 40 7 40 - 50 10 50 - 60 40 60 - 70 11
Best of luck all students
NOOR FATIMA
1:- Which of the following terms best describes data that were originally collected at an earlier time by a different person for a different purpose?
Primary data
Secondary data ANS
Experimental data
Field notes
2:- The extremely positive skewed curve is also known as:
Frequency curve
U-shaped curve
J-shaped curve
Reverse J-shaped curve
3:- From the following table, derive the relative frequency of the 4 Class? Classes Frequency 17.5 - 19.5 9 19.5 - 24.5 188 24.5 - 29.5 160 29.5 - 34.5 123 34.5 - 44.5 84 44.5 - 59.5 15
1
0.212435
0.025907
0.015544
4:- Which is appropriate average for finding the average speed of a car:
Mean
Geometric mean
Harmonic mean
Weighted mean
5: For given data, discuss the shape of the distribution: X f 0 2 1 3 2 5 3 7 4 5 5 3 6 2
Positively skewed
Negatively skewed
Symmetric curve
U- Shaped curve
6:- In statistics, conducting a survey means
Collecting information from elements
Making mathematical calculations
Drawing graphs and pictures
None of the above
7: From the following table, what is lower class boundry when mode is calculated? Class Boundaries Frequency 29.95 - 32.95 8 32.95 - 35.95 87 35.95 - 38.95 110 38.95 - 41.95 104 41.95 - 44.95 101
38.95
32.95
8: The data which has not undergone any statistical treatment is called:
Discrete data
econdary data
Primary data
Qualitative data
9: The Sum of the deviations of the observations from their mean is:
Maximum
Minimum
Zero
Un-predicted
10 From the given data, which one of the following chart we can draw: Year Area Production 1965-66 2866 1588 1970-71 3233 2229 1975-76 3420 1937
Simple bar chart
Multiple bar charts
11: Which of the following technique is not used to represent the bivariate qualitative data?
Line Chart
12: What is the median for the following data 1,1,2,2,5,5,7,7,7,
5
13: In case of a frequency distribution,the second quartile is given by the formula:
I+2h/f(n/2-c)
I+f/h(n/4-c)
I+f/h(2n/4-c)
I+h/f(2n/4-c)
14: The mean is obtained by
Divides a set of data into two equal parts
Most frequent value in the data set
Dividing the sun of all observations by their number
None of these
15: A frequency polygon is obtained by plotting the class frequencies against:
Mid-point of the classes
16: A flight of migrating honeybees to America is an example of:
Infinite population
17: Which of the following is not an example of random sampling?
Purposive sampling
18: Statistic is a numerical quantity,which is calculated from
Data
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