WorksheetsMidterm Recap
Total questions: 25
Worksheet time: 37mins
Name
Class
Date
1.
You have a list of numbers and multiply them all by 100. Which summary statistic doesn't change?
a)
Mean
b)
Median
c)
Z-Score
d)
Standard Deviation
2.
You are given N(100,20).
68% of the data is between...
68% of the data is between...
a)
20 and 100
b)
80 and 120
c)
60 and 140
d)
40 and 160
3.
You are given data with mean 100 and 95% of the data is between 90 and 110. What is the standard deviation?
a)
2
b)
5
c)
10
d)
95
4.
Choose the correct statement.
a)
Mean is larger than median
b)
Mean is smaller than median
c)
Mean and median approximately the same.
d)
Not enough information.
5.
Describe the shape.
a)
Right skew
b)
Left skew
c)
Symmetric
d)
Uniform
6.
50% of the data is approximately between...
a)
5 and 70
b)
5 and 35
c)
35 and 90
d)
35 and 70
7.
What is the median?
a)
1.9
b)
15
c)
19
d)
1.5
8.
Which is an example of continuous data?
a)
Weight of a person
b)
Number of students
c)
Cars owned
d)
Posters in room
9.
What proportion of males said no?
a)
75/90
b)
75/178
c)
71/178
d)
71/90
10.
What proportion of those of said no were male?
a)
71/75
b)
75/178
c)
90/178
d)
71/90
11.
Given N(70,5) and a z-score of +2. What was your percent on the test?
a)
2
b)
72
c)
60
d)
80
12.
Which one is NOT required in an experiment?
a)
Blocking
b)
Randomization
c)
Replication
d)
Control
13.
"Santa" stands in front of Target collecting donations for Salvation Army during Christmas time. What type of bias will he most likely suffer from?
a)
Response Bias
b)
Non-Response Bias
c)
Undercoverage
d)
Random Bias
14.
Dr. Role Locoster is checking equipment at Six Flags and randomly selects one ride from each coaster in the park. What type of sample is this?
a)
Cluster
b)
Simple Random Sample
c)
Stratified
d)
Systematic
15.
Dr. Role Locoster is checking equipment at Six Flags. He roles 2 dice and gets the number 9. He checks every 9th seat of each ride. What type of sampling is this?
a)
Cluster
b)
Simple Random Sample
c)
Stratified
d)
Systematic
16.
Señor Eitis never took notes in class. The teacher lets him use his notes on the test. What bias does he suffer from?
a)
Voluntary Bias
b)
Undercoverage Bias
c)
Convenience Bias
d)
Response Bias
17.
Choose the correct statement.
a)
Skewed left
b)
Range is 100
c)
Mean is 30
d)
Range is 80
18.
Given N(70,5) and a z-score of -1. What was your percent on the test?
a)
-1
b)
69
c)
65
d)
75
19.
Given N(70,5) which statement is false.
a)
95% of the data is between 60 and 80
b)
Standard deviation is 70
c)
Mean is 70
d)
Unusual is more than 80 and less than 60.
20.
Santa is bored and tries a new sampling type in front of Target. He puts 3 different hours in his hat and selects 10am-11am. He asks every customer during that hour to donate. What sampling did he use?
a)
Cluster
b)
SRS
c)
Systematic
d)
Response
21.
What topic are we doing in class next?
a)
Confidence Intervals
b)
Normal Curve
c)
Probability
d)
Hypothesis Testing
22.
What topic did we just finish?
a)
Confidence Intervals
b)
Normal Curve
c)
Probability
d)
Hypothesis Testing
23.
Which display is not appropriate for quantitative data?
a)
Boxplot
b)
Stemplot
c)
Histogram
d)
Bar Graph
24.
Which is not a word in CCUSS?
a)
Center
b)
Skew
c)
Spread
d)
Unusual
25.
ASB puts a table out in the quad for people to vote for Homecoming. Which bias do they suffer from most?
a)
Response
b)
Non-Response
c)
Voluntary
d)
Cluster
100 %
