The average speed of serve and number of years of training were recorded for 20 tennis players and plotted in the grid above. Which of the following statements is supported by the plotted data?

At the U.S. Open Tennis Championship a statistician keeps track of every serve that a player hits during the tournament. The statistician reported that the mean serve speed of a particular player was 103 miles per hour. Suppose that the statistician indicated that the serve speed distribution was skewed to the left. Which of the following values is most likely the value of the median serve speed?Group of answer choices85 mph94 mph103 mph112 mph

Each graph below represents the position of an object over time.W. X.Y. Z.Which of the graphs best represents constant speed over the 18‑minute time period? A. X B. W C. Y D. Z

At the U.S. Open Tennis Championship a statistician keeps track of every serve that a player hits during the tournament. The statistician reported that the mean serve speed was 100 miles per hour (mph) and the standard deviation of the serve speeds was 15 mph. If nothing is known about the shape of the distribution, what percentage of the player's serve speeds are less than 70 mph?Group of answer choicesapproximately 2.5%at most 12.5%at most 11%at most 25%

Students collected data about members of their favourite sporting teams.They were asked to collect data for their height, years at the club and age, and display the data using methods they had been studying. Four students were observed.Which student used a method of display that was not appropriate for the data?Question 1Select one:a.Ali used 3 line graphs.b.Trudy used a stem and leaf plot for the heights and dot plots for the years at the club and ages.c.Siobhan used stem and leaf plots for years at the club and ages, and a dot plot for height.d.Hugo used histograms for years at the club and ages, and a dot plot for height.

Martha wants to spend some time practicing the piano and using the computer before dinner.        Dinner will be ready in 50 minutes or less.        She wants to spend at least 20 minutes practicing the piano.Which graph represents the amounts of time Martha can spend practicing the piano and using the computer?A.Text description for graphB.Text description for graphC.Text description for graphD.Text description for graphSUBMITarrow_backPREVIOUS