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MATH SOLVE
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(8.32) An opinion poll calls 2000 randomly chosen residential telephone numbers, then asks to speak with an adult member of the household. The interviewer asks, How many movies have you watched in a movie theater in the past 12 months? Step 1: What population do you think the poll has in mind? Young people with disposable income. Moviegoers. Adult residents of the country. Step 2: In all, 1131 people respond. What is the rate (percent) of nonresponse? 43.45 56.55 53.45 46.55 Step 3: What source of response error is likely for the question asked?
General
4 months ago
A survey of 64 customers was taken at a bookstore regarding the types of books purchased. The survey found that 37 customers purchased mysteries, 30 purchased science fiction, 23 purchased romance novels, 16 purchased mysteries and science fiction, 12 purchased mysteries and romance novels, 8 purchased science fiction and romance novels, and 4 purchased all three types of books.a) How many of the customers surveyed purchased only mysteries?b) How many purchased mysteries and science fiction, but not romance novels?c) How many purchased mysteries or science fiction?d) How many purchased mysteries or science fiction, but not romance novels?e) How many purchased exactly two types of books?
General
4 months ago
4. Eric has $4,800 that he wants to invest for 4 years. He can invest this amount at his credit union and earn 4 percent simple interest. Or, he can open an account at Compass Bank and earn 3.65 percent interest, compounded annually. If he decides to invest at Copmpass Bank for 4 years, he will:
General
4 months ago
For a $60 coat there is an additional 10% charge when the coat is bought on credit. What is the total cost to a credit customer?
General
4 months ago
A car insurance company has determined that 8% of all drivers were involved in a car accident last year. Among the 15 drivers living on one particular street, 3 were involved in a car accident last year. If 15 drivers are randomly selected, what is the probability of getting 3 or more who were involved in a car accident last year?
General
4 months ago
A blind taste test will be conducted with 9 volunteers to determine whether people can taste a difference between bottled water and tap water. Each participant will taste the water from two different glasses and then identify which glass he or she thinks contains the tap water. Assuming that people cannot taste a difference between bottled water, what is the probability that at least 8 of the 9 people will correctly identify the tap water?
General
4 months ago
6 Knightmare Give an algorithm to find the number of ways you can place knights on an N by M (M < N) chessboard such that no two knights can attack each other (there can be any number of knights on the board, including zero knights). Clearly describe your algorithm and prove its correctness.
General
4 months ago
Joe, Al, and George were playing video games.• Joe completed 8 more levels than George.. Al completed 2 levels fewer than George• Together they completed 41 levelsIf x represents the number of levels that George completed, write an equationthat represents the situation.What is the equation?
General
4 months ago
What is 75 tens divided by 10
General
4 months ago
how do you graph this f(x)= -3/2|x|+5 if x≤4
General
4 months ago
Two points are located at (−9,−8) and (−6,−4).Complete the equations below to show how you can use the Pythagorean theorem to find the distance between these two points.
General
5 months ago
Claire has a hot tub with a diameter of 7 feet. She wants to purchase a cover to protect the hot tub. What is the areaof the cover? Use pi = 3.14 and round the answer to the nearest square foot.
General
5 months ago
What are the quotient and remainder when a) 19 is divided by 7? b) −111 is divided by 11? c) 789 is divided by 23? d) 1001 is divided by 13? e) 0 is divided by 19? f ) 3 is divided by 5? g) −1 is divided by 3? h) 4 is divided by 1?
General
5 months ago
the volume of a cylindrical can is 500cm^3. The materail used to make the top and bottom costs 0.012 cent/cm^2 the material used for the sides costs 0.01 cent?cm^2, and the seam joining the top and bottom to the sides costs .015 cent/cm. what size can would cost the least to produce?
General
5 months ago
Information on a packet of seeds claims that 93% of them will germinate. Of the 200 seeds that I planted, only 175 germinated. (a) Find a 95% CI on the true proportion of seeds that germinate based on this sample. (b) Does this seem to provide evidence that the claim is wrong
General
5 months ago
A Harris Interactive Survey for InterContinental Hotels and Resorts asked respondents, "When traveling internationally, do you generally venture out on your own to experience culture, or stick with your tour group and itineraries?" The survey found that 23% of the respondents stick with their tour group.In a sample of 6 internationals travellers, what is the probability that 2 will stick with their tour group?
General
5 months ago
A scientist has two solutions which she has labeled solution A and solution B. Each contains salt. She knows that solution A is 30% salt and solution B is 55% salt. She wants to obtain 60 ounces of mixture that is 45% salt. How many ounces of each solution should she use?
General
5 months ago
The length of a rectangle is 6 units less than the width. The area of the rectangle is 27 units. What is the width, in units, of the rectangle?
General
5 months ago
A theater group charges $12.50 per ticket for its opening play of the season. Production costs for the play are $150. Which function could be used to determine the profit the theater group earns from selling x tickets? A) f(x) = 12.50x B) f(x) = 12.50x + 150 C) f(x) = 150x −12,50 D) f(x) = 12.50x − 150
General
5 months ago
What is the perimeter of a rectangle with a length of 9 - 2y and width of 7?
General
5 months ago
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