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Explain briey what the law of large numbers tells us about what will happen if the gambler makes a large number of bets on red. (c) The central limit theorem tells us the approximate distribution of the gamblers mean winnings in 50 bets. What is this distribution? Use the 689599.7 rule to give the range in which the mean winnings will fall 95% of the time. Multiply by 50 to get the middle 95% of the distribution of the gamblers winnings on nights when he places 50 bets. (d) What is the probability that the gambler will lose money if he makes 50 bets?
Explain why we need to use the t distribution. What assumption do you need to make?
Students from the class for an oral exam, what is the probability that 3 female students and 5 male students will be selected?
The standard for this material requires that impact strength must be greater than 1.0ft-lb/in. The sample average and standard deviation obtained were 1.25 and 0.25 respectively.
The random variable X is the distribution of siblings of a student selected at random from a particular secondary school. Its probability distribution is given in the table.
Provide an example of a hypothesis test you could perform at work or at home. State what the Null and the Alternative hypotheses would be in your test.
A customer wants to estimate the average delivery time of a pizza from the local pizza parlor. The customer wants to obtain a sample mean that falls within 3.204 minutes of the true average delivery time with 99% confidence. If the customer knows ..
Find the sample mean and find the sample standard deviation - construct a confidence interval for the true population mean for body temperatures of healthy adults.
Describe three key lessons learned relative to ANOVA and Nonparametric tests. what concepts and analytic tools will you be able to use in your workplace?
A person purchases a package of 10 ball-point pens which, unknown to the purchaser, contains 4 defective pens. Of the first 2 pens used by the purchaser
Intersection of two mutually exclusive events: can be any value between 0 to 1, must always be equal to 1.
According to the survey, 37% of the adults are concerned that employers are monitoring phone calls. Use the binomial distribution formula to calculate the probability that:
The number of viewers of American Idol has a mean of 33 million with a standard deviation of 10 million. What is the probability that next week's show will: Have between 37 and 44 million viewers?
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