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MATH SOLVE
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A company surveyed 1000 people on their age and the number of jeans purchased annually. The results of the poll are shown in the table. Jeans Purchased Annually 0 1 2 3 or More Total Under 12 0 69 78 73 220 12-18 10 75 70 65 220 19-25 40 77 97 76 290 over 25 36 86 128 20 270 Total 86 307 373 234 1000 A person is selected at random. Compute the probability of the following. (a) The person is over 25 and purchases 3 or more pairs of jeans annually. 0.2 Incorrect: Your answer is incorrect. (b) The person is older than 18 or purchases 1 pair of jeans annually. 0.163 Incorrect: Your answer is incorrect. (c) The person is in the age group 12-18 and purchases at most 2 pairs of jeans annually. 0.07 Incorrect: Your answer is incorrect.
General
4 months ago
I need help! please show work!
General
4 months ago
Suppose that there are two types of tickets to a show: advance and same-day. The combined cost of one advance ticket and one same-day ticket is $55. For one performance, 40 advance tickets and 15 same-day tickets were sold. The total amount paid for the tickets was $1325. What was the price of each kind of ticket?
General
4 months ago
Nisha did the work below to solve an equation. Step 1 7b+3.2b-5=18.92 Step 2 10.2b-5=18.92 Step 3 5.2b= 18.92 Step 4 b=3.64. In which step did Nisha make her first error? Step 1 Step 2 Step 3 Step 4
General
4 months ago
Beer bottles are filled so that they contain an average of 335 ml of beer in each bottle. Suppose that the amount of beer in a bottle is normally distributed with a standard deviation of 7 ml. [You may find it useful to reference the z table.] a. What is the probability that a randomly selected bottle will have less than 332 ml of beer? (Round intermediate calculations to at least 4 decimal places, “z” value to 2 decimal places, and final answer to 4 decimal places.) b. What is the probability that a randomly selected 6-pack of beer will have a mean amount less than 332 ml? (Round intermediate calculations to at least 4 decimal places, “z” value to 2 decimal places, and final answer to 4 decimal places.)
General
4 months ago
Which of the following describes a net of the prismA. Three triangular bases and three rectangular lateral facesB. Three triangular bases and three triangular lateral facesC. Two triangular bases and three rectangular lateral facesD. Two triangular bases in three triangular lateral faces
General
4 months ago
Use the data to answer the Question below.Size of shoe:8,7,8.5,6.5,5,11,15,8,8,7.5,6.5,8,14,12
General
4 months ago
Please help me need before Monday
General
4 months ago
At the beginning of January, Kesia Records paid $148,950 to acquire the exclusive rights to a new album. It costs them $1.13 to print a copy of this album, which they can sell for $9.75. The following chart shows the sales of that record, along with the overhead expenses of running a record studio, not counting production costs. Month Albums Sold Expenses Jan. 5,486 $27,714 Feb. 8,191 $21,689 Mar. 4,796 $25,195 Apr. 7,490 $28,766 May 6,272 $24,604 Jun. 5,131 $29,040 In whch month did Kesia Records first break even? a. January b. March c. April d. May
General
4 months ago
My niece wanted to create a coverup she saw on Pinterest. It required a square piece of patterned fabric. We found an online store with some bright and fun samples of fabric at a reasonable price. They charge a flat shipping fee of $10 and then $3 per yard.The formula 3n + 10 = t can be used to determine the total cost of the fabric, where n is the number of yards purchased, and t is the total cost of the fabric1.1. What is the dependent variable (or write “neither” if there is not one)? _______________Explain why or why not:
General
4 months ago
Rationalize the denominator and simplify.
General
4 months ago
Professor Halen has 184 students in his college mathematics lecture class. The scores on the midterm exam are normally distributed with a mean of 72.3 and a standard deviation of 8.9. How many students in the class can be expected to receive a score between 82 and 90?
General
4 months ago
What are the solutions of 3x^2 - x +7 =0?
General
4 months ago
Nancy and Harry are sliding a stone statue and moving it to a new location in their garden. Nancy is pushing the statue with a force of 120N at a 60° angle to the horizontal and Harry is pulling the statue with a force of 180N at a 40° angle with the horizontal. What is the magnitude of the horizontal force exerted on the statue?
General
4 months ago
(3 points) The directional derivative of f(x, y) at (2, 1) in the direction going from (2, 1) toward the point (1, 3) is −2/ √ 5, and the directional derivative at (2, 1) in the direction going from (2, 1) toward the point (5, 5) is 1. Compute fx(2, 1) and fy(2, 1).
General
4 months ago
The maker of an automobile advertises that it takes 12 seconds to accelerate from 20 kilometers per hour to 65 kilometers per hour. Assuming constant acceleration, compute the acceleration in meters per second per second. Round your answer to three decimal places.
General
4 months ago
A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than examine the records for all students, the dean randomly selects 200 students and finds that 118 of them are receiving financial aid. If the dean wanted to estimate the proportion of all students receiving financial aid to within 3% with 99% reliability, how many students would need to be sampled?
General
4 months ago
The probability that an appliance is currently being repaired is .5. If an apartment complex has 100 such appliances, what is the probability that at least 60 are currently being repaired? Use the normal approximation to the binomial.
General
4 months ago
A medical researcher wishes to estimate what proportion of babies born at a particular hospital are born by Caesarean section. In a random sample of 49 births at the hospital, 32% were Caesarean sections. Find the 95% confidence interval for the population proportion
General
4 months ago
Could use some help with this question please!
General
4 months ago
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