q3-  For categorical data: Select one or more: a. We can't apply boxplot to show its distribution b. We can apply aggregate functions. c. We can't use histogram to show its distribution. d. The interval between units is the same.

The organization of the Girl Scouts has completed its annual cookie drive. The sales are reported in the accompanying ogive.   Approximate the percentage of girls who sold more than 70 boxes of cookies.

Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. x 3 7 15 32 75 y 40 35 30 26 18 (a) Make a scatter diagram of the data and visualize the line you think best fits the data.  Flash Player version 10 or higher is required for this question. You can get Flash Player free from Adobe's website.   (b) Would you say the correlation is low, moderate, or strong? positive or negative? strong and negative moderate and negative   strong and positive low and negative low and positive moderate and positive (c) Use a calculator to verify that Σx = 132, Σx2 = 6932, Σy = 149, Σy2 = 4725, and Σxy = 2997. Compute r. (Round your answer to three decimal places.)r =  As x increases, does the value of r imply that y should tend to increase or decrease? Explain. Given our value of r, we cannot draw any conclusions for the behavior of y as x increases. Given our value of r, y should tend to…

Which one?

The most important aspects of variable distribution are: a. Histogram, bar diagram, pie chart, leaf and stem b. Form, center and extension c. It’s cases and categories d. Form and type of variable

A physics professor wishes to compare quiz grades between her two classes. The quiz was worth 10 points. The dot plots show the grade distributions. 4 10 9. Class A 10 Class B Each dot represents a What was the lowest quiz grade in Class A? What was the highest quiz grade in Class 8?