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A multiple choice quiz consists of 50 questions, each with 4 possible answers. Find the mean for the number of correct answers, if a student guesses on each question. Answer 25.0 12.5 4.0 46.0
Is the answer 12.5?
What are the mean and the standard deviation of the number of firms that purchase a Unix machine from Sun Microsystems?
You have a graph with a regression line that is positively sloped. The regression line starts with observation points tightly packed around the regression line but as you move across the x-axis the observations tend to get further and further away..
The probability that a new advertising campaign will increase sales is assessed as being 0.60. The probability that the cost of developing the new ad campaign can be kept within the original budget allocation is 0.50.
describe the error in the conclusion. given there is a linear correlation between the number of cigarettes smoked and
what is wrong with this statement? high linear correlation proves that the explanatory variable variable x caused the
A manufacturer has a maximum of 240, 360, and 180 kilograms of wood, plastic and steel available. The company produces two products, A and B. Each unit of A requires 1, 3 and 2 kilograms of wood, plastic and steel respectively;
a player tosses two coins. if two heads show he wins 4. if one head shows he wins 2 but if two tails show he must pay a
1. in the basic economic order quantity eoq model if monthly demand is a constant 430 units the order quantity is 144
mark gershon owner of a musical instrument distributorship thinks that demand for guitars may be related to the number
At 95% confidence using the critical value approach, test to see if the percentage of defective systems produced by x-Game has exceeded the industry standard.
if the last digit of a weight measurement is equally likely to be any of the digits 0 through 9. round your answers to
in 1988 the mean expenses for college were 8000 with a standard deviation of 800. if 40 students were selected at
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