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You plan to invest $200,000 in stocks on the Toronto Stock Exchange. If you invest $2000 in any particular stock, your profit will be $400, $200, $0 or -$200 (a loss) with probability 0.25 each. There are 100 different stocks you can choose from, and they all behave independently of each other.
a) If you invest $200,000 in one stock, what is the probability that your profit will be $15,000 or more.
b) If you invest $2000 in each of the 100 stocks, what is the probability that your profit will be $15,000 or more.
If a survey of 109 randomly selected united states residents is to be taken, what is the approximate probability that at least 60 will be under 31 years of age?
We are interested in a 95% confidence interval for the population mean score. The margin of error associated with the confidence interval is?
Automatic sensors to watch for lightening in a sample of 10 square kilometers. What are the mean and standard deviation of x, the mean number of strikes per square kilometer?
Calculate each project's expected return, variance, and standard deviation. Rank the projects on the basis of (1) expected return and (2) risk. Which project would you choose?
Simplify each expression-Perimeter of a rectangle. The perimeter of a rectangular backyard is 6x+6 yards. If the width is x yards, find a binomial that represents the length.
You have been put in charge of developing a new game of chance. In this game a person will roll two cubes each having the numbers 1 to 6 on their faces. As a first step in developing the game, what are the possible outcomes and their probabilities?
a college requires applicants to have an act score in the top 10 of all test scores. the act scores are normally
Compute the marginal frequencies. (List the totals for the age groups and localities). What percent of the urban dwellers are over 50? What percent of the Over-50 residents live in rural areas?
If 200 passengers take this flight, find the binomial and Poisson probability of no platinum flyers (round your answer to 4 decimal places).
question 20 cubic meters of hydrogen gas at 47 degrees celsius is heated under constant pressure to a tempature of 127
we have given the number of successes and the sample size for a simple random sample from a population. in each case do
for this problem carry at least four digits after the decimal in your calculations. answers may vary slightly due to
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