Saturday

January 31, 2015

January 31, 2015

Posted by **landi** on Sunday, January 10, 2010 at 7:47pm.

45, 21, 54, 22, 65, 61

A) 54 B)49 1/2 C) 45 D)48 1/2

2. The following scores were recorded on a 100-point examination:

95, 75, 76, 86, 96, 71, 68, 81, 95, 76, 69, 82, 93, 88, 94

Find the mean and median final examination scores. =B

A) mean: 81; median: 83 C) mean: 82; median: 83

B) mean: 83; median: 82 D) mean: 83; median: 81

Use the following to answer questions 3-4:

3. Use the graph, showing the yearly food costs of a family.

In what year was the cost of food the greatest?

A) 2002 B) 2005 C) 2000 D) 2004

4. Use the graph, showing the yearly food costs of a family.

What was the cost in 1999?

A) $8,500 B) $9,000 C) $900 D) $500

Use the following to answer question 5:

5. The pie chart shows the distribution of a person's total yearly income of $36,000. Find the amount budgeted for utilities.= B

A) $1,800 B) $2,880 C) $3,600 D) $4,320

6. Find the mode of the following set of numbers.= C

11, 13, 13, 12, 11, 12, 13, 10, 14

A) 11, 12, and 13 B) No mode C) 13 D) 12

7. Fiona kept the following records of her phone bills for 12 months:

$47, $42, $56, $46, $63, $49, $47, $40, $58, $63, $51, $62

Find the mean and median of Fiona's monthly phone bills.

A) mean: $52, median: $50 C) mean: $50, median: $52

B) mean: $52, median: $48 D) mean: $48, median: $50

8. Find the five-number summary of the following set of numbers.

0.16, 0.08, 0.27, 0.20, 0.22, 0.32, 0.25, 0.18, 0.28, 0.27

A) 0.08, 0.18, 0.223, 0.27, 0.32 C) 0.08, 0.18, 0.225, 0.27, 0.28

B) 0.08, 0.18, 0.235, 0.27, 0.32 D) 0.08, 0.16, 0.23, 0.28, 0.32

9. Find the first and third quartiles, Q1 and Q3, of the following set of numbers. = C

14, 4, 13, 18, 8, 15, 8, 3, 11, 8

A) 4; 13 B) 4; 15 C) 8; 14 D) 3; 18

10. Construct a box-and-whisker plot for the set of numbers.

348, 234, 146, 384, 247, 487, 276, 221, 303

Use the following to answer question 11:

11. Use the bar graph, showing the attendance at a circus for 7 days in September, to find the day with the greatest attendance.

12. The following scores were recorded on a 100-point examination:

91, 85, 76, 86, 96, 51, 68, 92, 85, 72, 66, 88, 93, 82, 84

(a) Find the mean final examination score.

(b) Find the median final examination score.

(c) Is the mean or median a more useful representative of the final examination scores?

13. Place the following set of numbers in ascending order.

20, –7, 5, –5, 12, 4, 15

A) –7, –5, 4, 12, 5, 15, 20 C) –7, –5, 4, 5, 12, 15, 20

B) –7, 4, –5, 5, 12, 15, 20 D) 20, 15, 12, 5, 4, –5, –7

14. Find the reciprocal of

A) B) C) D)

15. Subtract

A) 4 B) –4 C) 4.4 D) –4.4

16. Find the reciprocal of

A) B) C) D)

17. Add

A) B) C) D)

18. Perform the indicated operation.

A) B) Undefined C) 5 D)

19. Multiply

A) B) C) D) 6

20. Add B

A) –10.26 B) 8.74 C) –8.74 D) 10.26

21. Subtract

22. Which of the following numbers are integers?

23. Multiply = -189

24. Find the reciprocal of = -1/6

25. Divide = -3

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