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With reference to Exercise 85, find the distribution function of the random variable X and plot its graph. Use the distribution function of X to find
Exercise 85
A coin is biased so that heads is twice as likely as tails. For three independent tosses of the coin, find
(a) the probability distribution of X, the total number of heads;
(b) the probability of getting at most two heads.
question a nutritionist thinks the average person with an income below the poverty level gets less than the recommended
Suppose that a certain college class contains 54 students. Of these, 34 are sophomores, 35 are psychology majors, and 7 are neither. A student is selected at random from the class.
A clinical trial is planned to compare an experimental medication designed to lower blood pressure to a placebo.
According to a recent survey, the probability that a passengerfiles a complaint with the Department of Transportation about aparticular U.S. airline is .000014. Suppose 100,000 passengers whoflew with this particular airline are randomly contacted..
the mean errors per page made by a clerk in the word processing pool for a large company is thought to be 2.4 with the
Cornwell uses these forecasts for its production planning. It manufactures several types of glass, and demand is aggregated across products and measured in pounds.
In each of the following cases, decide whether or not a binomial distribution is an appropriate model, and give your reasons.
Discuss the subject matter in the article and interpret the results and what the confidence interval and the margin of error mean as they apply to the specific subject matter.
A company producing a standard line and a deluxe line of dishwasher has the following time requirements (in minutes) in departments where either model can be processed
Determine which class has the greatest relative frequency and which has the least.
it is claimed that in a bushel of peaches less than ten percent are defective. a sample of 400 peaches is examined and
a study showed that 65 of the nation believes we are still in a recession. in a class of 20 students what is the
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