Bivariate Data

Write an equation for the trend line shown.

(a)  

Several schools reported the number of students who received a flu vaccine in a year and the number of cases of the flu amongst their students that year. A scatter plot was made with a trend line that had an equation of y = -1/4x+85, where y is the total number of cases of the flu and x is the total number of students who received a flu vaccine. Use the data to answer the questions below. Predict how many students received a flu vaccine if a school had 65 cases of the flu.

(a)  

18.a.The two-way table shows the results of a

survey where middle school students were asked

what their favorite core subject was.

What is the frequency of 7th grades who prefer English?

(a)  

What is the frequency of 6th graders prefer science?

(a)  

The two-way table shows the results of a survey where middle school students were asked what their favorite core subject was.

What is the frequency of the 6th graders?

(a)  

The two-way table shows the results of a survey where middle school students were asked what their favorite core subject was. What is the frequency students that prefer history?

(a)  

The two-way table shows the results of a

survey where middle school students were asked

what their favorite core subject was.

What is the relative frequency of 8th graders that prefer history?

(a)  

The two-way table shows the results of a

survey where middle school students were asked

what their favorite core subject was.

Of 7th grades what is the conditional frequency that prefer history?

(a)  

Data that has two variables

• bivariate data

• clustering

• frequency

• outliers

Graphs that use points to display numerical data with two variables.

• two-way tables

• survey

• bivariate data

• scatter plot