AnswersNJ-Algebra I CRUnit Test

Relative Frequencies and Association Answers

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The conditional relative frequency table was generated using data that compared the outside temperature each day to whether it rained that day.

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A
0.3
B
0.35
C
0.65
D
0.7
2
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The frequency table represents the job status of a number of high school students.Which shows the conditional relative frequency table by column?

Question illustration
A
A 4-column table with 3 rows titled job status. The first column has no label with entries currently employed, not currently employed, total. The second column is labeled looking for a job with entries 0.3, nearly equal to 0.33, 1.0. The third column is labeled not looking for job with entries 0.7, nearly equal to 0.65, 1.0. the fourth column is labeled total with entries nearly equal to 0.27, nearly equal to 0.73, 1.0.
Option A
B
A 4-column table with 3 rows titled job status. The first column is blank with entries currently employed, not currently employed, total. The second column is labeled Looking for a job with entries 0.12, 0.38, 050. The third column is labeled not looking for a job with entries 0.28, 0.72, 1.00. The fourth column is labeled total with entries 0.4, 1.1, 1.5.
Option B
C
A 4-column table with 3 rows titled job status. The first column has no label with entries currently employed, not currently employed, total. The second column is labeled looking for a job with entries 0.24, 0.76, 1.0. The third column is labeled not looking for a job with entries 0.28, 0.72, 1.0. The fourth column is labeled total with entries nearly equal to 0.27, nearly equal to 0.73, 1.0.
Option C
D
A 4-column table with 3 rows titled job status. The first column has no label with entries currently employed, not currently employed, total. The second column is labeled looking for job with entries 0.08, nearly equal to 0.25, nearly equal to 0.33. The third column is labeled not looking for a job with entries nearly equal to 0.19, 0.48, nearly equal to 0.67. The fourth column is labeled total with entries nearly equal to 0.27, nearly equal to 0.73, 1.0.
Option D
3

A conditional relative frequency table is generated by column from a set of data. The conditional relative frequencies of the two categorical variables are then compared.

A
An association cannot be determined between the categorical variables because the relative frequencies are not similar in value.
B
There is likely an association between the categorical variables because the relative frequencies are not similar in value.
C
An association cannot be determined between the categorical variables because the sum of the relative frequencies is 1.0.
D
There is likely an association between the categorical variables because the sum of the relative frequencies is 1.0.
4

Look at the table on texts assigned to students.

Question illustration
A
0.01
B
0.02
C
0.1
D
0.2
5

The conditional relative frequency table was generated using data that compared the cost of one ticket for a performance and the method by which the ticket was purchased.

Question illustration
A
0.14
B
0.18
C
0.30
D
0.86
6

The two conditional relative frequency tables show the results of a neighborhood survey on the number and types of gardens in the community.Table B: Garden-Type Frequencies by RowWhich table could be used to answer the question "Assuming someone has a flower garden, what is the probability they also have a vegetable garden?"

Question illustration
A
Table A, because the given condition is that the person has a flower garden.
B
Table A, because the given condition is that the person has a vegetable garden.
C
Table B, because the given condition is that the person has a flower garden.
D
Table B, because the given condition is that the person has a vegetable garden.
7

The conditional relative frequency table was calculated by row using data from a survey of one station’s television programming. The survey compared the target audience with the type of show, either live or recorded, over a 24-hour time period.Which is the best description of the value 0.375 in the table?

Question illustration
A
Given that the program was targeted at adults, there is a 37.5% chance that it was recorded.
B
Given that the program was recorded, there is a 37.5% chance that it was targeted at adults.
C
37.5% of the programs are targeted at adults.
D
37.5% of the programs are recorded.
8

A guidance counselor compiles data relating a student's English grade to the number of languages studied. The results are shown in the frequency table below.The counselor converts the frequency table to a conditional relative frequency table by column.What is the value of X?

Question illustration
A
0.16
B
0.20
C
0.24
D
0.40
9

The conditional relative frequency table below was generated by column from a frequency table comparing the color of a flower to a type of flower.Which would most likely indicate an association between the categorical variables?

Question illustration
A
The value of G is similar to the value of H.
B
The value of B is similar to the value of E.
C
The value of G is not similar to the value of H.
D
The value of B is not similar to the value of E.
10

Which value for Y in the table would be least likely to indicate an association between the variables?

Question illustration
A
0.06
B
0.24
C
0.69
D
1.0

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