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Women's SAT math scores in 2007 had the N(499,110) distribution. What percent of women scored 750 or better? Round your answer to the nearest hundredth but do not include the % symbol.
A Garage door opener has six toggle switches, each with three settings: up, center, and down. How many settings are possible in which two switches are up, two are down, and two are center?
Question: A graduate student has decided she needs a day at the beach. She will need a swimsuit, a pair of sunglasses and a beach towel for the occasion. If she has 2 swimsuits, 3 pairs of sunglasse
How can standardized z-scores be used to compare people across different contexts, such as the batting averages of two players-one who played in the 1970s and one who played in the 1990s?
Imagine that a student takes a 20-item multiple choice exam. She didn't study, so all of her answers are guesses. Each item on the exam has five possible answers. What is the expected number of corr
A committee of 8, consisting of 2 Republicans, 3 Democrats, and 3 Independents, is to be chosen from a group of 5 Republicans, 6 Democrats, and 4 Independents. How many different committees are pos
In a game of change if you purchase one ticket out of the 100 tickets being sold at a cost of $ 5.00 how much money would you expect to win taking into consideration the cost of the ticket. The winn
Question: Suppose that we have two events, A and B, with P(A)=.50, P(B)=.60, and P(A union B) = .40
Electric charge is distributed over the rectangle 1 = x = 2, 0 = y = 2 so that the charge density at (x, y) is s(x, y) = 2xy + y2 (measured in coulombs per square meter). Find the total charge on the
You are going to select 6 players for a volleyball team from a group of 13 players. How many possible teams can be selected? Assume each player selected can play any position on the team.
A bridge hand (thirteen cards) is dealt from a standard 52-card deck. Let A be the event that the hand contains 4 aces; let B be the event that the hand contains four kinds. Find P(A U B).
A family managed to decrease their energy consumption from 145 kilowatt-hours to 136 kilowatts-hours. What percent of energy has been saved?
In how many ways can a photographer arrange 6 people in a row from a group of 10 people, where the bride and groom are among those 10 people if:
Suppose we decide to examine another test spot weld. Let X = shear strength of the weld. Use the given data to obtain the mle of P(X = 400).
You find that a small business loan in the amount of 50,000 is the amount you need to purchase the restaurant location. After researching banks to find the best interest rate, you find that banks fo
What do you conclude about the claim below? Do not use formal procedures or exact calculations. Use only the rare event rule and make a subjective estimate to determine whether the event is likely.
There are thirty-five (35) members in the Kalamazoo Travel Club. Four (4) people will be chosen to win a vacation. How many ways can the four (4) be chosen if all four will win a trip to Greece?
A lottery offers one $1000 prize, one $500 prize, five $100 prizes, and ten $10 prizes One thousand tickets are sold. What should be the price of the ticket if the game is fair?
Joey starts a paper route at age 15 and saves $15 each month in an annuity that pays 6.9%. He continues this habit until he retires at age 68, 53yrs later. a) What will be the value of the annuity
A researcher conducted a study on the effects of stress on migraines. The researcher computed the number of migraines individuals reported during a six-month time frame as a function of the amount o
A number of post-1983 pennies and post-1964 quarters were weighed. Here is a summary of the results: Do the pennies and quarters have the same amount of variation?
In how many ways can 9 identical indistinguishable billard balls be placed in the 4 bins, with no restriction as to the number of balls in each bin?
At a local Panda Express, you can choose one base item from four possibilities (rice, fried rice, vegetable, noodles) and three different entrees from 12 left in the counter. How many different meal
In a repair shop there are 7 cars and 4 pickups to be serviced. A mechanic has time to work on 5 vehicles in a given day. If he chooses to work on 3 cars and 2 pickups today, how many different grou
Find the value of the test statistic, z, in the given situation. The claim is that less that 1/2 of all adults in the US have carbon monoxide detectors. A research survey of 1005 adults resulted in