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Computers are playing an increasing role in education. Write a program that will help an elementary school learn multiplication.
Use a Random object to produce two positive one-digit integers. The program should then prompt the user with a question, such as
How much is 6 times 7?
The student then inputs the answer. Next, the program checks the students answer. If it is correct, display the message "Very good!" and ask another multiplication question. If the answer is wrong, display the message "No.
Please try again." And let the student try the same question repeatedly until the student finally gets it right. A separate method should be used to generate each new question.
This method should be called once when the application begins execution and each time the user answers the question correctly.
National polls are often conducted by asking the opinions of a few thousand adults nationwide and using them to infer the opinions of all adults in the nation. Explain who is in the sample and who is in the population for such polls. Please use a ..
For multiple sclerosis patients we wish to estimate the mean age at which the disease was first diagnosed. We want a 90% confidence interval that is 8 years wide. If the population variance is estimated to be 85 from previous research, how large a..
Do you believe this model is useful in predicting the starting salary? Justify your answer, using information provided in the computer output.
In an enterprise the unit cost of the product is 200 dollars in 2000, 160 dollars in 2005, please calculate the average annual decline rate of unit cost during the period from 2000 to 2005. If in 2010 the unit cost of the product down to 112 dolla..
Construct a diagram that shows the payoffs to the two firms in strategic (normal) form. What is the Nash equilibrium in this game?
The program asks the user four questions. It converts the person's favourite color, person's gender and person's level of education into a corresponding number. Finally a lucky number is generated based on a mathematical expression using these num..
A 40 year annuity due has level annual payments of $1000 except for the m-th payment which is $2000. When using an annual effective interest rate of 5%, the value of the annuity four years after the first payment is $22,722.53 Find M.
Construct a 95% confidence interval estimate for the population mean price for two movie tickets, with online service charges, large popcorn, and two medium soft drinks, assuming a normal distribution.
Assume that the relationship between the growth of a fish population and the population size can be expressed as g = 2P - 0.1P, where g is the growth in tons and P is the size of the population (in thousands of tons).
There are 10 flights from Minneapolis to St. Cloud each day. The probability that any one flight is late is 0.05. Using the binomial probability formula, what is the probability that 1 or more are late?
What is the average length of time a car is in the yard, in the bump area, and in the painting area? What is the average length of time from when a car arrives until it leaves?
Show that the set of trembling hand perfect equilibria of this extensive game is disjoint from the set of behavioral strategy profiles associated with the trembling hand perfect equilibria of its strategic form.
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