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Explain Bivariate and marginal and conditional probabilities. The following data from a sample of 100 families display the record of college attendance by fathers and their oldest sons- in 22 famili
Explain probability of compound events. In a study of the consumer's opinion of the economy the probability that a consumer would buy a house during the year was 0.013, as well as the probability th
In a large western university, 15% of the students are graduate students. If a random sample of 20 students is selected, what is the probability that the sample contains.
Explain Probability values based on discrete distribution. You roll a fair die three times and what is the probability that
Explain Probability of independent events. Consider again the auto repair rates described and if you own two cars and what is the probability that
Used when making claims about the population mean of a normal or near normal population, the population standard deviation is not known, and a simple random sample of small size (n < 30) is obtai
Explain probability values from discrete distribution. A consumer organization approximations that over a 1-year period 17% of cars will want to be repaired once
Probability calculation using Hyper Geometric distribution. Supposing that a hand of 12 cards is dealt from a normal deck of 52 playing cards.
How can you use a confidence interval to test a two-sided hypothesis? First, to test a two-sided hypothesis at level of significance α, we can construct a confidence interval based on a
Explain probability values using the Addition rule. Supposing that 46% of families living in a certain country own a car and 18% own an SUV
Explain probability values using Binomial distribution. A university found that 20% of its students extract without completing the introductory statistics course. 20 students registered for a sectio
Assume that the measurements came from a normal distribution. The variability of the manufacturing process is unknown means the same as the standard deviation is unknown.
Explain Probability using normal distribution. Based on the model N(1152,84) defining Angus steer weights and what are the cut off values for
To find out whether the course is effective in increasing sale, the appropriate set of hypothesis for testing is (Be careful which one you choose!)
Explain probability of simple and compound events. Explain A check of dorm rooms on a large college campuses revealed that 38% had refrigerators,
Explain probability for simple and compound events. A convinced bowler can bowl a strike 70% of the time. Explain what is the probability that she
Explain probability values using normal distribution. The time required to complete a final examination in a particular college course is usually distributed with a mean of 80 minutes and a standard
There are 20 families living in Will Development. Of these families 10 prepared their own federal income tax for last year, 7 had they prepared by a local professional, 3 by H&R Block.
Explain probability values for specified events. A normal population has a mean of 80.0 as well as a standard deviation of 14.0
Explain probability values for normal distribution. The mean amount of gasoline as well as services charged by Key Refining Company credit customers is $70 per month. The distribution of amounts ex
An internal study by the Technology Services department at Lahey revealed company employees receive an average of 2 emails per hour. Assume the arrival of these emails is approximated by the P
Describe Probability, mean and standard deviation for uniform distribution. A group of students composed data at the Cedar Point amusement park as well as reported that the ‘wait time' to ride t
Find out Pr(X1, X2 < 2) where X1 and X2 are independent and each has the uniform distribution over the interval (1, 2).
Explain the probability of rolling pair of dice. Deliberate the experiment of rolling a pair of dice. Supposing that we are interested in the sum of the face values showing on the dice.
A personality test has a subsection designed to assess the "honesty" of the test-taker. Suppose that you're interested in the mean score, µ, on this subsection among the general population.