Question
Consider the table below and use it to answer questions 7 to 8. X 9 2 12 7 16 5 8 Y 12 18 11
Consider the table below and use it to answer questions 7 to 8.
X 9 2 12 7 16 5 8 Y 12 18 11 16 9 15 14
7. What is thePearson'scorrelation coefficient?
A. 0.959 B. - 0.920 C. 0.920
8.What is the Spearman's Rank correlation coefficient?A. 0.9643 B. 0.9643C. 0.9613
9. All the following are measures of location EXCEPT
A. range B. median C. first quartile
D. - 0.959 D. 0.9613
D. 40th percentile
10. Pick the odd one out
A. inter-quartile range B. standard deviation C. coefficient of variation D. median
The list shows the ages of all the children registered in a daycare centre
3, 2, 1, 3, 2, 1, 3, 1, 1, 4, 3, 5, 2, 1, 4, 4, 1, 3, 2, 2, 4, 3, 1, 2, 5, 4, 2, 1, 3, 4, 1, 2 Use it to answer questions 11 - 14
11. Which conclusion drawn about this daycare centre is NOT true?
- The range is 4
- The median age is less than 2
- The daycare centre has more than 30 children
- There are more 2-year old children than 4 year old children.
- What is the mode? A. 1 B. 2 C.4 D.3
- What is the median age? A. 1 B. 3 C. 2 D. 2.5
- What is the mean? A. 1 B. 5 C. 3.5 D. 2.5
The advertising expenditure of a Telecom company is dispayed in the pie chart below. Use this information to answer questions 15-18. Correct your answerto the nearest 1000.
Radio 28%
BillboardInternet6%7%
Magazine 14%
Newspaper 21%
Television 24%
15. If the company spends a total of GH10,000 on magazine advertising, how much does it spend in total on billboard and newspaper advertising?
A. GH4,000 B. GH15,000 C. GH19,000 D. GH17,500
- What is the total amount spent by the company on advertising? A. GH17,500 B. GH71,000 C. GH7,500 D. GH10,500
- What is the total expenditure of the company on radio advertising? A. GH 24,000 B. GH11,000 C. GH20,000 D. GH10,000
- What is the difference in the amount spent on radio advertising and that of internet and billboard advertising put together?
- A. GH 9,000 B. GH11,000 C. GH20,000 D. GH4,000
- When plotting the ogive of examination scores of students, the horizontal axis would be labelled as:
A. Scores B. Size C. Class mark D. Class boundaries
20. What is the range of the following data: 22, 32, 35, 32, 28, 26?
A. 11 B.13C.11D. 13
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