Question
4. Statistics studies both quantitative and qualitative variables.* True False 5. Statistics is the science of analyzing* A. Qualitative data B. Quantitative data C. Both
4. Statistics studies both quantitative and qualitative variables.*
True
False
5. Statistics is the science of analyzing*
A. Qualitative data
B. Quantitative data
C. Both a and b
D. None of these
6. The functions of statistics are*
A. Simplifies complexities
B. Expresses facts in numbers
C. Presents data in condensed form
D. All of the above
Other:
7. How do you find the median of a data set that has two middle numbers?answer choicesYou pick the higher middle numberYou pick the lower middle numberAdd the two middle numbers and divide it by 2Subtract the two middle numbers and divide by 2*
A. You pick the higher middle number
B. You pick the lower middle number
C. Add the two middle numbers and divide it by 2
D. Subtract the two middle numbers and divide by 2
Other:
8. What does the standard deviation tell us about the data set?*
How spread out the numbers are
B. How much each number in the data set increases by
How much each number in the data set decreases by
D. None of these
Other:
9. Say 'TRUE' or 'FALSE' Mean, Median, Mode of a grouped data are always equal*
TRUE
FALSE
Other:
10, In a discrete data, what name is given to the item occurring most frequently?answer choicesMedianModeMeanFrequency*
MEAN
MEDIAN
MODE
FREQUENLY
Other:
11. What is the mean of first 10 natural numbers?*
55
5
5.5
6.5
Other:
12.'TRUE' or 'FALSE' The median of an un-grouped data and the median when the same data is grouped are always the same*
TRUE
FALSE
Option 3
Option 4
Other:
13. For a data containing 15 items arranged in ascending order, what item is the median of the dataanswer choices7th item8th item6th and 7th item 7th and 8th item*
7th item
8th item
6th and 7th item
7th and 8th item
Other:
14. What is the median of first 101 natural numbers?answer choices51505253*
51
50
53
52
Other:
15. A radio station asks its listeners to dial one of two numbers to indicate their preference for one of two candidates in an upcoming election. Of the responses received, 76% favored candidate A. If there are 1,500 registered voters, how many will vote for candidate A?answer choices1,14061,974100*
1140
1974
6
100
Other:
16. In order to find the median, the data must be sorted from least to greatest first.*
TRUE
FALSE
Other:
17. What's another word for median?*
AVERAGE
MODE
MIDDLE
MEAN
Other:
18. What is another word for mean?answer choicesmedianaveragemodesumquotient*
MEDIAN
MODE
SUM
AVERAGE
QUOTIENT
Other:
19. What is the range?The sum of the largest and smallest numberThe number in the middleThe difference between the largest and smallest numberThe number that appears most often*
The sum of the largest and smallest number
The number in the middle
The difference between the largest and smallest number
The number that appears most often
Other:
20. Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Ervin's scores?answer choices1931276066*
193
127
60
66
Other:
21. What is the first thing you should do before finding the median or the mode?answer choicesStart crossing numbers offPut numbers in order from least to greatestList the numbers how they areLook for repeats*
Start crossing numbers off
Put numbers in order from least to greatest
List the numbers how they areLook for repeats
D. None of these
Other:
22. What is the mode? 500, 600, 700, 800, 500, 600*
500 and 600
800
700 and 800
500
Other:
23. Q. What is the mode? 3, 12, 12, 14, 15, 4, 12, 12, 16, 16*
12
16
1
4
Other:
24. Q. Students at Cooper school took a survey about what kinds of pets they had at home. Then, students plotted that information on a frequency table. How many kids have dogs and cats for pets?answer choices1912720*
19
12
7
20
Other:
25. Find the median of the data set. 9, 8, 7, 11, 7, 16, 3*
8
7
3
2
Other:
26. Calculate the MEAN for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7*
7
7.44
8
7 and 8
Other:
27. Owen was asked to write down the number of pull-ups that 7 of his classmates could do. He wrote down: 3, 2, high, low, 6, 1, 8. Owen said that "high" was greater than 6 and "low" was less than 2. Find the median.*
2
3
2.5
cannot be determined
Other:
28. On a recent test, one class of 26 students had a mean score of 78%, while another class of 32 students had a mean score of 86%. What is the overall mean of the two classes combined?*
81
82
83
82.4
Other:
29. What makes a question statistical?*
Population
Measurability
Variability
All of the above
Other:
30. Identify the POPULATION in the following question: What are the ages of the students at Clarke University?*
Students
Age
Clarke University
D. None of these
Other:
31. Identify the POPULATION in the following question: What are the ages of the students at Clarke University?*
Student
Ages
Clarke University
D. None of these
Other:
32. What does it mean for a graph of data to be SYMMETRICAL?*
Most of the data is grouped to the left side
Most of the data is grouped to the right side
Most of the data is in the middle (draw a line down the middle and both sides look the same)
D. None of these
Other:
33. What does it mean for a graph of data to be SKEWED LEFT?*
Most of the data is grouped to the left side
Most of the data is grouped to the right side
Most of the data is in the middle (draw a line down the middle and both sides look the same)
D. None of these
Other:
34. What does it mean for a graph of data to be SKEWED RIGHT?*
Most of the data is grouped to the left side
Most of the data is grouped to the right side
Most of the data is in the middle (draw a line down the middle and both sides look the same)
D. None of these
Other:
35. Which answer shows categorical data?*
AGE
HEIGHT
NUMBER OF COUSIN
FAVORITE SINGER
Other:
36. Which answer shows numerical data?*
Favorite animal
Hours of sleep last night
Hair color
Secondary school you attended
37. Which of the following is a measure of variability?*
mean
meadian
mode
standard deviation
Other:
38. All of the below sets have the same mean.Set 1-Standard Deviation=3.1. Set 2 -Standard Deviation=4.9. Set 3-Standard Deviation=1.7. Set 4-Standard Deviation=3.2. Which set of data probably has the points closest to the mean?*
1
2
3
4
Other:
39. Four data sets are shown below.Set 1: {10, 19, 38, 50, 51}. Set 2: {5, 21, 26, 39, 51}. Set 3: {9, 38, 50, 50, 51}. Set 4: {5, 28, 28, 28, 51}Which data set has the largest standard deviation?*
Set 1
Set 2
Set 3
Set 4
40. If the standard deviation of a data set is 4, what is the variance?*
2
4
16
D. None of these
Other:
41. Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the sample standard deviation of Ervin's scores?*
511.33
22.61
438.48
20.94
Other:
42. The number of goals scored by seven forwards in one soccer season were 8, 6, 4, 8, 3, 1, and 5. Find the mean number of goals scored by the seven forward*
20
10
5
3
Other:
43 . What is the variance for the data given:5, 10, 7, 12, 0, 20, 15, 22, 8, 2*
52.77
47.47
81
102.01
Other:
44. What does this symbol represent?*
Variance
Standard Deviation
Mean Absolute
Sigma
Other:
45. What does variance represent?*
How many different variations are in the data set.
How the population varies compared to the sample.
How spread out each data value is from the mean.
The range, but with a bunch of other stuff going on.
Other:
46. How do you calculate the standard deviation?*
Its a long process and I can't explain it right now.
Divide the variance by 2.
Take the square root of the variance.
Find the mean and multiply it by the variance.
Other:
47. What does this symbol represent?*
Standard Deviation
Variance
Mean Absoulute
Sigma
Other:
48. the square of this value will give the variance*
mean
median
variance
Standard Deviation
Other:
49. Before you can begin calculating the variance, you must first:*
find the mean
find the median
find the mode
find the range
Other:
50. What is the standard deviation for the data given:5, 10, 7, 12, 0, 20, 15, 22, 8, 2*
6.89
10.1
7.26
9
Other:
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