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- 1. Multiple Choice
A set of drivers were asked about the number of accidents made in one year. Their answers were abbreviated in the following table:
The total number of surveyed drivers is:
20
70
4
10
- 2. Multiple Choice
A set of drivers were asked about the number of accidents made in one year. Their answers were abbreviated in the following table:
The number of drivers that made no accidents is:
0
3
5
7
- 3. Multiple Choice
A set of drivers were asked about the number of accidents made in one year. Their answers were abbreviated in the following table:
The percentage of drivers who made 4 accidents is:
4%
20%
25%
60%
- 4. Multiple Choice
A set of drivers were asked about the number of accidents made in one year. Their answers were abbreviated in the following table:
The mean (average) number of accidents is performed by a driver is:
1.5
2
2.5
1
- 5. Multiple Choice
Knowing that the total of a certain surveyed population is 25. The central angle of a value whose frequency 5 is:
- 6. Multiple Choice
The five grades of a student over 20 are: 10 ; 12 ; 13 ; 16 and 19. The average grade is:
13
14
14.5
15
- 7. Multiple Choice
The statistical data can be represented by:
Frequency bar graph
Pie graph
Increasing cumulative frequency polygon
All choices
- 8. Multiple Choice
Choose all correct answers by referring to the following bar graph representing a statistical series:
The total frequency is 45
The total frequency is 25
The value 6 is the most frequent value
The % relative frequency for the value 7 is 20%
The % relative frequency for the value 7 is 24%
- 9. Fill in the Blank
The adjacent graphic represents the cumulative frequency polygon of the students' grades in a certain class.
What is the number of the students of this class?
- 10. Fill in the Blank
The adjacent graphic represents the cumulative frequency polygon of the students' grades in a certain class.
How many students got a grade 8?
- 11. Fill in the Blank
The adjacent graphic represents the cumulative frequency polygon of the students' grades in a certain class.
How many student got a grade 9?
- 12. Fill in the Blank
The adjacent graphic represents the cumulative frequency polygon of the students' grades in a certain class.
what is the relative frequency of the grade 8?
- 13. Multiple Choice
Which of the following are discrete data? Choose one or more
Number of TV Programs watched
Length of a leaf
Number of goals scored
Colour of cars in a car park
Weight of potatoes
- 14. Multiple Choice
Calculate the MEDIAN for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7
7
7.44
8
7 and 8
- 15. Multiple Choice
Calculate the MODE for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7
7
7.5
8
7 and 8
- 16. Multiple Choice
What was the most common IQ range?
91-100
111-120
12-130
101-110
- 17. Multiple Choice
The mean of this data set is 17.8. What would happen to the mean if 40 was added to the data set?
The mean would not change
The mean would go up
The mean would go down
- 18. Multiple ChoiceCan there be more than one mode?YesNo
- 19. Multiple Choice
The scores of a student in five test were 10, 8, 13, x, and 9. Knowing that the mean of these five scores is 12, then x is
12
14
18
20
- 20. Fill in the Blank
To obtain a grade A, Youseff’s mean score in
five tests must be 85 or more. Youseff has
scored 86, 94, 75 and 88 in four tests.
What is his minimum mark in the fifth test
to get a grade A?
The minimum mark in the fifth test should be
- 21. Fill in the Blank
The mean number of emails Adele received during a week was 51. The numbers received
for the first six days were 39, 57, 70, 45, 71 and 32. Find how many emails she received
on the seventh day.
She received _ emails on the seventh day.
- 22. Multiple Choice
Find the Median of the following chart
3.3
2.5
4
3.5
- 23. Multiple Choice
Calculate the MEAN for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7
7
7.44
8
7 and 8
- 24. Multiple ChoiceThe salary of the employees in the office were $15,000; $18,000; $16,000; $14,000; $90,000; and $17,000. What is the best measure of the central tendency of the salaries?MeanMedianModeRange
- 25. Multiple ChoiceThe heights of the starting 5 players on a basketball team are 60 inches, 67 inches, 64 inches, and 65 inches. If the mean or balance point of the players is 65, what is the height of the 5th player?70696168
- 26. Multiple ChoiceWhat do you do if there are two numbers in "the middle" when you are finding the median?Pick your favorite numberAdd the two numbers in the middle & then divide by two.They are both the medianNone of the above
- 27. Fill in the Blank
Find the mean of the data
- 28. Fill in the Blank
Find the median of the data
- 29. Multiple Choice
What is the mean of this set of data?
2, 15, 7
24
3
6
8
- 30. Multiple ChoiceFind the median of these numbers:
2, 3, 4, 5, 5, 7454.56 - Answer choicesTagsAnswer choicesTags