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Algebra Questions and Answers
The percentage of the adult population that smokes can be modeled by the function P (x) whose graph is shown below. The input x is years after 1975. 30 20- 20 In what year did the percentage of smoker...
= 8 9 10 11 12 13 14 15 = 16 17 18 A company started out spending $466 to get up and running, and then it planned on charging $30 for its product. The amount of profit (which is money brought in minus...
1. Explain how to use the formula P(A or B)=P(A)+P(B)−P(A and B). Be specific. 6. After rolling a fair twenty-sided die 200 times, the observed (or experimental) probability of rolling a ...
14. How can you make a 95% confidence interval smaller without changing the confidence level? 15. What does standard deviation measure in a probability distribution? 16. Solve for X∼B(10...
14 15 16 ~ 17 18 19 20 21 22 23 24 25 nt Use the interest formula A = P 1+- An investment offers 3.5% interest compounded weekly if the investor keeps the money untouched for a 4-year period. (This is...
In order to estimate the population proportion of students at Sandy Beach High that are going to attend prom a random sample of 200 students was taken. The resulting confidence interval was (73%, 80%)...
In the year 2019, 14% of college students said they didn't like their roommate. Suppose that several people took random samples of 50 college students from the population and computed the percent of s...
A college nursing program has select admissions to their program and only accepts 28% of applicants. Every year, a high school surveys 50 of their students who applied and recorded who was accepted. W...
D Question 6 10 pts According to a poll in 2016, about 10%, percent of Americans said they were "very afraid" of spiders. Suppose that we took random samples of 35 people from this populatio...
Suppose the average of a student's first date in your school is distributed as shown below. Suppose that we were to take random samples of 10 classmates from this population and calculate the sample m...
A large medical professional organization with membership consisting of doctors, nurses, and other medical employees wanted to know how its members felt about HMOs (health maintenance organizations). ...
A large medical professional organization with membership consisting of doctors, nurses, and other medical employees wanted to know how its members felt about HMOs (health maintenance organizations). ...
Identify the sampling method for the following scenario. The Educational Testing Service (ETS) needed a sample of colleges. ETS first divided all colleges into groups of similar types (small public, s...
Identify the sampling method for the following scenario. A local restaurant manager wants to survey customers about the service they receive. Each night the manager randomly chooses a number between 1...
Find the statistic in the following situation. A researcher wants to find out which dandruff shampoo works better. He takes 100 volunteers and randomly gives half of them brand A and the other half br...
The following data represents the amount of medication still in someone's system after specific amounts of time. Time 0 3 6 9 12 15 (hours) Meds (mg) 500 255 129 66 33 15 What would a residual of -3 m...
Question 6 10 pts The following data represents the amount of medication still in someone's system after specific amounts of time. Time 0 3 6 9 12 15 (hours) Meds (mg) 500 255 129 66 33 15 Find the re...
A restaurant will select 1 card from a bowl to win a free lunch. Jimmy puts 10 cards in the bowl. The bowl has a total of 150 cards in it when they do the drawing. What are the odds of Jimmy winning a...
A. Evaluate the following showing steps as indicated in the lesson content. 1. f(x) = 15x - 12 and g(x) = -15x 2 + 14x - 10 find g(f(7)) 2. f(x) = -13x 2 - 13x + 14 and g(x) = -13x - ...
last year ivanna opened an investment account with 6600 at the end of the year the account decreased by 6.5% how much is this decreas in dollars how much money was in her account at the end of the yea...
C. State the domain and range: Use the grid to draw the graph and verify your answer. Be sure to label the scales on your axes to accommodate the numbers in the problem. ( You may not use a compute...
Solve the problems below. Write the problem, your work, and the solution. Be sure to show all of your work. A. State the inverse of each relation. Is the inverse a function? Why or why not? 1. {(18,...
Solve the problems below. Write the problem, your work, and the solution. Be sure to show all of your work. A. Evaluate the following showing steps as indicated in the lesson content. 1. f(x) = 15x...
Math 143 (1) This Question: 1 pt 3 of 12 (1 complete) This Test: 12 pts poss The table shows the distribution, by age and gender, of the 29.3 million people in a certain region who live alone. Use the...
Annual snowfall in Anchorage, Alaska, is normally distributed with a mean height of 76 inches and a standard deviation of 4.7 inches. What is the probability this year that it will snow between 71.4 a...
An engineering company has four openings and the applicant pool consists of 6 database administrators and eight network engineers. All are equally qualified so the hiring will be done randomly. The hi...
Yearly, students are invited to membership in the honor society for your major if their class is rank is at least in the 90th percentile for all students in that major. In 2019, you ranked 54 out of 2...
You need school supplies. You go to the store and see that there are 6 different backpacks, 8 notebooks, 3 packets of pens, and 8 folders to choose from. You decide to go to another store to see their...