In a survey of 3239 adults aged 57 through 85 years, it was found that 85.8% of them used at least one prescription medication. Complete parts (a) through (c) below. a. How many of the 3239 subjects used at least one prescription medication? (Round to the nearest integer as needed.)

57% of all the town's residents own a dog and 66% own a cat. Of the dog owners 49% also own a cat. If a town resident is chosen at random find: (round to 4 decimal places where possible) a.  P(Own a Dog) =  b.  P(Own a Cat) =  c.  P(Own a Cat and a Dog) =  d.  P(Own a Dog GIVEN Own a Cat) =

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

In a memory test, the test subjects are given a large number and are asked to memorize it. Historical records show that 80% of test subjects pass the test. To pass the test, a subject must exactly repeat all the digits in the number after two hours. A random sample of 625 people to take the memory test is going to be chosen. Let p be the proportion of people in the sample who pass the test. Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of P. 0 (b) Find the standard deviation of p. 0 (c) Compute an approximation for P(P >0.84), which is the probability that more than 84% of the people in the sample pass the test. Round your answer to four decimal places. 0 X

A survey of 12,073 adults in a particular country found that 47.9​% received an influenza vaccine for a recent flu season. Identify the population and the sample.         Identify the population for the given problem. Choose the correct answer below.     A. The collection of immunization statuses of the 12,073 adults selected   B. The collection of immunization statuses of all adults in the country   C. The 12,073 adults selected   D. All adults in the country Identify the sample for the given problem. Choose the correct answer below.     A. The immunization status of all adults in the country   B. The immunization status of the 12,073 adults selected   C. All adults in the country   D. The 12,073 adults selected

The boxplots below show the number of marshmallows in a bag, as estimated by students in two elementary school classes. 250 225 200 175 150 125 100 75 50 25 0 Ms. Apple's Class Which class has more students?? A. O Ms. Apple's class B. Ms. Banana's class C. O Both classes have the same number of students. D. O It is impossible to tell from the boxplots. HI Ms. Banana's Class one answer.

a list of the over 2300 Henry Clay high School is compiled. from that list 250 names are randomly chosen and given a survey to complete. of those surveyed 72% said they intended to attend college after completing high school what would the 250 students surveyed would be an example of?

At a certain university, 77.6% of 20,712 students were undergraduates in fall semester of a given year. How many undergraduates were there? There were O undergraduates. (Round to the nearest person as needed.) Activate Windows

Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 140 subjects with positive test results, there are 30 false positive results. Among 159 negative results, there are 3 false negative results. Complete parts (a) through (c). (Hint: Construct a table.) a. How many subjects were included in the study? The total number of subjects in the study was ...

To properly examine the effect of a categorical independent variable in a multiple linear regression model we use an interaction term. True O False