Describe the graph in terms of its shape and direction. Also indicate if there are any outliers present.

A split Stem-plot for a data set is shown. Write out the original data set used to create the split Stem-plot.

Find the percentage of observations that have z-scores above z = -2.75. Round your answer to the nearest tenth of a percent.

Find the mean age of the following 7 people. Round to the nearest tenth:  17, 19, 35, 36, 39, 51, 61.  How many of these people have ages below the mean?

Multiple choice. From this box-plot, you can conclude that this data set is: a. Symmetric b. Skewed to the right c. Skewed to the left

State the mean and standard deviation of the normal curve shown. What is the official name of this normal curve?

Fill in the blanks: If a set of data is skewed, then the ________________ will be pulled away from the ________________ in the direction of the _________________.

Using the normal curves shown, state the mean and the standard deviation for each distribution.

True or False? Histograms, stem-plots and line graphs display categorical data.

Which residuals plot indicates the data is appropriate for linear regression?

The line of best fit from the data in the table is: y = -0.404x + 8.821 and the correlation coefficient is r = -0.62. Use the regression equation to predict hours of sleep for a person who makes 9 social media posts. Are you extrapolating?

Use the information provided in the graph to find the correlation coefficient (round to the nearest hundredth). Is the correlation positive or negative? Is the correlation strong or weak or is there no correlation?