Based on the following research question: Does having diabetes lead to people increasing the average number of servings of fruit they normally eat per day?   The variable average number of servings of fruit eaten per day is the [answer1] The variable having diabetes is the [answer2]

A student at a college administers a survey to estimate the average number of miles driven weekly among on-campus students at USF. The student sends a questionnaire to the 35th person in each sampling interval, from a complete list of on-campus students provided by the registrar. What type of sampling has occurred?

Based on a sample 100 great white sharks the average length is roughly 15 feet.  15 feet is a statistic.

3 students apply to a PhD program.  The program rejects 25% of all applicants.  Students are accepted and rejected independently of each other.  Let the random variable X represent the number of the 3 students who get rejected into the PhD Program. (Hint: Binomial distribution with n=3, P=25%)   What is the standard deviation of the random variable?  (round your answer to 4 decimal places)

If a researcher only contacts students who take their class to be a part of their sample, what type of sampling has occurred?

Five hundred women are enrolled in a study to evaluate the accuracy of a test for pregnancy. 200 of the women were actually pregnant. 170 of the pregnant women had a positive test as did 140 of the women who were not pregnant. What is the probability (i.e., specificity) that a woman tested negative on a test given that she is not pregnant? Test                         Pregnant? Yes No Total + 170 140 310 – 30 160 190 Total 200 300 500

Based on the following research question: Does playing video games make someone more likely to pursue a degree in a STEM field?   The variable do you play video games [answer1] The variable pursuing a degree in a STEM field [answer2]

Select the term that best fits this definition: This term equals this:

Based on the following research question: Do people who on average eat at least 8 servings of fruit per day have a lower likelihood of having diabetes than those who on average eat at at most 4 servings of fruit per day?   The variable average number of servings of fruit eaten per day is the [answer1] The variable having diabetes is the [answer2]

It is known that people in the USA spend on average 18 hours a day using electronic devices with a standard deviation of 5.8 hours. This data follows a normal distribution. What is the probability someone spends more than 20 hours using electronic devices a day? (round your answer to 4 decimals)