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If a blue marble is drawn, it is placed back in the box along with all of the (necessarily red) marbles in the holding pan. Aside from the above, the rules/law is according to the usual random selecti
The cutoff for mathematics scores is 550. How many Texas men had a qualifying score? and What score defines the top 10% of Texas women's scores on the math SAT?
A rehabilitation center researcher was interested in examining the relationship between physical fitness prior to surgery of persons undergoing corrective knee surgery and the time required in physi
In a study to investigate the effect of the color paper (blue, green, orange) on response rates for questionnaires distributed by the "windshield method" in supermarket parking lots, four supermarke
A multiple choice exam has 10 questions. Each question has 4 possible answers, of which one is correct. A student knows the answers to 3 of the questions and answers them correctly. The student gue
A report from the U.S. Department of Justice gave the following percent increases in federal prison populations in 20 northeastern and midwestern states during 1999. 5.9, 1.3, 3.0, 5.9, 4.5, 5.6, 2
Two people are going from Seattle to Portland. Alice has 50% chance of arriving at 5:00 and a 50% chance of arriving at 6:00. Bob's arrival time is independent of Alice's. The number of minutes aft
With probability 0.4, stocks are worth $18, commercial bonds are worth $15, and Government bonds are worth $9.With probability 0.4, stocks are worth $11, commercial bonds are worth $10, and Governm
So if you have a variance of 75 for a class average with a standard deviation of +/- 15. What grade will 96% of the class and 68% of the class' grades fall? If you can show some work also, I would
A hot dog vendor provides onions, relish, mustard, ketchup, Dijon ketchup, and hot peppers for your hot dog. How many variations of hot dogs are possible using (a) one condiment? (b) Two condiments
A hockey team has 6 forwards, 4 defensemen, and 2 goalies. At any time, 3 forwards, 2 defensemen, and 1 goalie can be on the ice. How many combinations of players can a coach put on the ice?
A dinner party is attended by four men and four women. How many unique ways can the eight people sit around the table? How many unique ways can the people sit around the table with men and women al
Suppose the problem statement is as follows. Roll two 6 sided dice and add the numbers on the faces. What is the total sample space S (A sample space is the set of all possible outcomes)? If we def
What is the probability that a random person's test will come up positive? If a random person's test comes back positive, what is the chance that they have not actually contracted the virus?
Apply the classical Runge-Kutta method to solve the following initial value problem y'=(y+x)^2 given y(0)=0 and the step size h=0.1. Provide a table with the exact, calculated values, and the error
Generate two random numbers between 0 and 1 and take X to be their sum. The sum X can take any value between 0 and 2. The density curve of X is a curve that forms an isosceles triangle with the hori
At a large university it is known that 50% of the students live on campus. The director of student life is going to take a random sample of 200 students. Which of the following is most likely to occ
An experiment investigated the effect of length and repetition of TV ads on students choosing to eat at Del Taco. All 60 students watched a 40-minute television program that included ads for Del Tac
In a Midwestern state an automobile insurance company has a large number of customers. From company files it is known that 80% of the customers have only the state minimums for insurance. An officia
At Appalachian State University it is known that 48% of undergraduates are male. If a sample of 125 undergraduate students was taken, which of the following would accurately describe the sampling di
A negative relationship between an explanatory variable X and a response variable Y means that as X increases, Y decreases, and vice versa. True? False?
A clinical trial is planned to compare an experimental medication designed to lower blood pressure to a placebo. Before starting the trial, a pilot study is conducted involving ten participants.