From the scatter plot, which of the following is FALSE? Pulse After Marching O b. 110 100 70 60 40 50 60 70 Pulse Before Marching 80 90 100 Variable being predicted is the pulse before marching. Variable being predicted is the pulse after marching.

Use a graphing calculator to find the equation of the line of best fit for the data in the table below. Find the value of the correlation coefficient r. Then predict the number of movie tickets sold in 2014.

please solve A, B, and D   ch 12

Answer clearly

The table shows the number of students on the track team who run the hurdles and in relays. No student runs in both. Hurdles Relays 7th graders 8 12 8th graders 15 15 Total 23 27 Total 20 30 50 What is the joint relative frequency to the nearest hundredth of boys who run relays?

Which choice correctly describes the shape of this histogram?     a.symmetric b.uniform c.skewed right d.skewed left

Please explain

Classify the histogram as skewed to the left, skewed to the right, or approximately symmetric.

Construct a scatter plot from the given points and describe the correlation.

The accompanying table lists the ages of acting award winners matched by the years in which the awards were won. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Should we expect that there would be a correlation? Use a significance level of a = 0.01. Click the icon to view the ages of the award winners. Construct a scatterplot. Choose the correct graph below. OA 70- 20- 20 70 Best Actress (years) B. 70- 20- 20 70 Best Actress (years) The linear correlation coefficient is r = (Round to three decimal places as needed.) 70- 20- 20 70 Best Actress (years) Q G D. 70- 20- 20 70 Best Actress (years)