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Question: Stocks. Since the stock market began in 1872, stock prices have risen in about 73% of the years. Assuming that market performance is independent from year to year, what's the probability that
a) the market will rise for 3 consecutive years?
b) the market will rise 3 years out of the next 5?
c) the market will fall during at least 1 of the next 5 years?
d) the market will rise during a majority of years over the next decade?
1. Assume that a random variable is normally distributed with a mean of 1,500 and a variance of 324. a. What is the probability that a randomly selected value will be greater than 1,550?
If a study subject is randomly selected and it is then found that the subject entered a guilty plea, find the probability that this person was not sent.
On a test, a sample of 5 students has a mean score of 78. The scores of four students of them are: 87, 81, 76, 53. Find the test score of the fifth student and standard deviation of this sample.
He received a score of 70 on a biology test for which the class mean was 70 with standard deviation of 4. On which test did he do better relative to the rest of the class?
64% of men consider themselves professional baseball fans. You randomly select 10 men and ask each if he considers himself a professional baseball fan.
Give graphical and numerical summaries for these data.- Compute a 95% confidence interval for the mean call length. Comment on the validity of your interval.
steve and his friends are relaxing at a local tavern. the number of drinks that steves table receives is poisson
Person committed crime, b court failed to prove it and found him not guilty - calculate test statistics and find P-value for test.
the probability that an individual has 20-20 vision is 0.15. in a class of 50 students what is the mean and standard
It is believed that the population standard deviation for the length of online videos is 1.7 minutes. The website would like to set α =0.05. The critical value for this hypothesis test would be ________. Round to three decimal places.
Use the regression tool in Excel or the "bulit in" Excel functions to determine the trend line and generate a forecast for CPI in the year 2011.
We wish to measure the average prevalence of a chemical in the population. The measurement is done by a blood test.
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