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To play a game you must pay $5 for each play. There is a 10% chance you win $7, a 35% chance you win $5, and a 45% chance you win only $1.
Question 1: Find the probability distribution of your net winnings if you play one time. Calculate the mean and the standard deviation.
Question 2: You play twice. Assuming the plays are independent events, what are the mean and the standard deviation of your total winnings?
Use the trend equation to calculate the points for 2003 and 2005. Plot them on the graph and draw the regression line.
Calculate the mean, median and mode for both sets and do graph/histogram to chart the results and conclude if indeed one set of year had more the other as far a snowfall.
Martin Motors has in stock three cars of the same make and model. The president would like to evaluate the gas consumption of the three cars (labeled car A, car B, and car C) using four different types of gasoline. For each trial, a gallon of gaso..
Run a multiple regression and interpret all the findings, R 2 , F, IV coefficients, and the intercept. Then in paragraph format, identify and report the following:
Formulate the hypotheses to determine whether or not the lathe is in perfect adjustment.
Determine the probability that a randomly selected teacher earns more than $525 per week?
You find that a random sample of five microwave ovens has a mean repair cost of $75 and a standard deviation of $12.50. At α = 0.01, do you have enough evidence to support the repairer's claim?
No estimate of the population proportion is available. How large a sample is required?
Using Sally's estimate of demand that follows, how many T-shirts should she produce for the upcoming event?
The reason why we finish our calculation by dividing range by 4 is that in most data sets 95% of the data values fall within two standard deviations of the mean.
Compute the score based on their appropriate class means and standard deviations:
Let A be the event that a randomly chosen employee has a college degree and B the event that the chosen employee's income is more than $50,000.
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