cently a community college offered a 2-credit course to help students with math anxiety. At the beginning of the course, each student took a 30-question survey (called MARS-S); the higher the score, the more anxiety experienced by the student. The nine students remaining in the class took the same survey at the end of the course. The before and after scores for each of the nine students who completed the course are shown below. student before after 72 69 66 52 3 83 71 4. 97 85 95 61 6. 78 45 95 56 52 43 8. 93 62 9. Compute the correlation between before and after scores for these students. (Assume the correlation conditions have been satisfied and round your answer to the nearest 0.001.)

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Jill is pulling names out of a hat in order to select students to complete her survey.  There are 9 names in the hat.  What is the possibility that she selects the names out in order from youngest to oldest?

What is the name of the test used?

A statistics professor kept attendance records and recorded the number of absent students per class. This data is displayed in the following histogram with the frequency of each number of absent students shown above the bars. How many total classes do these data represent?

↑ A survey was conducted by a website on which online music channels subscribers use on a regular basis. The following information summarizes the answers. 11 listened to rap, heavy metal, and alternative rock. 18 listened to rap and heavy metal. 20 listened to heavy metal and alternative rock. 16 listened to rap and alternative rock. 25 listened to rap. 40 listened to heavy metal. 31 listened to alternative rock. 20 listened to none of these three channels. a. How many people were surveyed? b. How many people listened to either rap or alternative rock? c. How many listened to heavy metal only? a. How many people were surveyed?

A study of 552 first-year college students asked about their preferences for online resources. One question asked them to pick their favorite. Here are the results in a pie chart. Pie Chart for the Online Resource Wikipedia 9% Libriary 14% Other Google 74% Select correct answer(s). This is a multiple-answer question. It may have more than one correct answers. i. The percentage in the pie chart shows the percent for each category of a qualitative or a categorical variable. ii. Google is the favorite for about three-quarters of the students. iii. More than 85% of the students are in favor of using either Google or library. iv. Less than 20% of the students are in favor of using either library or Wikipedia.

If Meg got a C in her two-unit PE class, an A in her three-unit Statistics class and a B in her five-unit English class, what was her GPA for the semester? answer choices: 3.00 GPA 3.10 GPA 3.44 GPA 3.28 GPA

Mrs. West taught 120 science students last year. Of these students, 25% earned an A in her class. How many students earned an A?

Dr. A. Ventura is interested in determining what kinds and how many pets people own in Bakersfield. He stands outside Petco and asks people what kind of pet they own. This is the result of his survey: dog=1; cat=2; bird=3; reptile=4; fish=5; other=6 1,1,2,2,2,1,1,3,2,3,1,1,1,2,2,4,4,2,2,1,1,1,5,4,3,4,1,1,1,2,2,6,1,1,2,2,1,2,1,2,6,3,4,5