Answers CR27 ALG 1-1200310-S2-Degele-VOL7006PRelative Frequencies and Association

Lesson 10.8: Relative Frequencies and Association Answers

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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?

Given that the program was targeted at adults, there is a 37.5% chance that it was recorded.

Given that the program was recorded, there is a 37.5% chance that it was targeted at adults.

37.5% of the programs are targeted at adults.

37.5% of the programs are recorded.

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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.

An association cannot be determined between the categorical variables because the relative frequencies are not similar in value.

There is likely an association between the categorical variables because the relative frequencies are not similar in value.

An association cannot be determined between the categorical variables because the sum of the relative frequencies is 1.0.

There is likely an association between the categorical variables because the sum of the relative frequencies is 1.0.

A car dealer organizes the inventory of a specific model of car into a frequency table comparing the type of car and the model year. The dealer used the data from the frequency table to create this conditional relative frequency table by column.Which is the best description of the 0.1 in the table?

Given that a car is a coupe, there is a 10% chance it is from the previous model year.

Given that a car is from the previous model year, there is a 10% chance that it is a coupe.

There is a 10% chance that the car is from the previous model year.

There is a 10% chance that the car is a coupe.

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?

0.16

0.20

0.24

0.40

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.

0.14

0.18

0.30

0.86

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?

The value of G is similar to the value of H.

The value of B is similar to the value of E.

The value of G is not similar to the value of H.

The value of B is not similar to the value of E.

The conditional relative frequency table was generated by row using frequency table data comparing the hat size and shirt size of children on a baseball team.The coach attempts to determine an association between shirt size and hat size. Which is most likely true?

An association cannot be determined because 0.48 is similar to 0.52.

An association cannot be determined because the sum of each column is not 1.0.

There is likely an association because 0.8 is not similar to 0.2.

There is likely an association because 0.8 is not similar to 0.33.

The conditional relative frequency table below was generated by column using frequency table data comparing the number of calories in a meal to whether the meal was prepared at home or at a restaurant.A nutritionist attempts to determine an association between where food is prepared and the number of calories the food contains. Which is most likely true?

An association cannot be determined because the value 0.55 is similar to the value 0.45.

There is an association because the value 0.15 is not similar to the value 0.55.

There is an association because the sum of each column is 1.0.

An association cannot be determined because the sum of the rows going across is not 1.0.

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?"

Table A, because the given condition is that the person has a flower garden.

Table A, because the given condition is that the person has a vegetable garden.

Table B, because the given condition is that the person has a flower garden.

Table B, because the given condition is that the person has a vegetable garden.

Look at the table on texts assigned to students.

0.01

0.02

0.1

0.2

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Lesson 10.8: Relative Frequencies and Association Answers

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