WorksheetsStatistics Study Guide
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
First Name
4 lines
2.
Last Name
4 lines
3.
Period
a)
1
b)
2
4.
I understand that I must submit my work for credit at the end of the test. I UNDERSTAND that I can lose points (partial credit) for not submitting the appropriate items.
a)
Yes
b)
No
5.
1. What is the joint relative frequency of males who prefer dogs?
a)
0.58
b)
0.23
c)
0.22
d)
0.45
e)
0.29
6.
2. Consider the data collected from an analysis of instrument types in two different city orchestras. Which of the following statements are accurate? Select all that apply.
a)
Bridgeville's orchestra has more total instruments than Smyrna's orchestra.
b)
There are more strings than percussion and keyboard/harps combined.
c)
There are more brass instruments in total than any other type of instrument.
d)
There are a total of 112 instruments between the two orchestras.
e)
Both cities have the same amount of strings.
7.
3. Which statement is a conditional relative frequency shown with the correct supporting ratio.
a)
The ratio of students who like Berry Bomb the best is 16/39.
b)
The ratio of 9th graders who like Yellow Energy is 11/39.
c)
The ratio of students who are 10th graders who like Yellow Energy is 12/21.
d)
The ratio of students who who are 10th graders who like Yellow Energy is 12/23.
8.
4. Which of the following statement are true? Select all that apply.
a)
The conditional relative frequency of those who passed the posttest is 13/20, 0.65.
b)
Of those who took the pretest, those who failed had a conditional relative frequency of 14/21, 0.67.
c)
The marginal relative frequency of those who pretest and postest are the same.
d)
Of the students who passed, half passed the pretest.
e)
Of those who failed, 8 failed the pretest.
9.
5. What is the joint relative frequency of those of take Medication 1 who are under 50, and what is the marginal relative frequency of those 50 and over.
a)
0.07 and 0.72
b)
0.07 and 0.67
c)
0.60 and 0.72
d)
0.60 and 0.33
e)
0.07 and 0.28
10.
#6 Choose the correct statements. Select all that apply.
a)
The joint relative frequency for people WITHOUT children who prefer a beach vacation is .28 or 28%.
b)
The joint relative frequency for people WITH children who prefer a beach vacation is .28 or 28%.
c)
The marginal relative frequency for those who have children is .59 or 59%.
d)
The marginal relative frequency for those who prefer the mountain vacation is .37 or 37%.
11.
7. Which of the following conclusions are supported by the data? Select all that apply.
a)
There is a strong preference for trail riding among female campers.
b)
Trail riding and paintball have about the same preference overall.
c)
Among males, paintball is preferred over swimming by a 2:1 ratio.
d)
Male and female campers have similar preferences overall.
e)
Overall, fishing is the most preferred activity.
12.
9. In your own, describe the difference between joint relative frequency, marginal relative frequency and conditional relative frequency.
4 lines
100 %
