Expected number of spots showing
Suppose that the number of dice thrown is a binomial random variable with n = 10 and p = 0.98. What is the expected number of spots showing on the thrown dice? Expected number of spots =
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A poll of 1000 americans reported that 42% expect to inherit money from their parents. What is the 99% confidence interval of the true proportion of adults who expect to inherit money from their parents?
The z-score for a particular number (x) is -1.25, where the values have a mean of 175.0 and a standard deviation of 12.0. Find the particular number (x)
Assume that a sample is used to estimate a population proportion p. Find the margin of error E that corresponds to the given statistics and confidence level.
Does your experimental drug affect cholesterol? You run a study where the 15 subjects in group #1 receive the experimental drug and the 15 in group #2 receive a placebo. A t-test on your data yielded an observed value of 2.01.
Let A be the subset of the plane R2 defined as the intersection of the first quadrant and the annulus between the circles of radii 1 and 2 centered at the origin. In other words
Score-S-Up is a company that helps students improve their test scores on college entrance exams. They advertise that the study program increases a person's score on the GMAT by an average of 30 points. A consumer group wishes to test if the averag
Each man is to receive a sarlary proportional to the amount of time he is actually at work servicing customers,the rate being the same for both. if together they earn $100 per day how should this money slipt?
Discuss the various sampling methods we might use in determining which items to include in a sample?
Decks of Pinochle cards have a total of 48 cards and consist of 8 cards each of nines, tens, jacks, queens, kings, and aces with there being two of each suit of each denomination (for example, there are 2 aces each of diamonds, clubs, hearts, and
Find the amounts indicated. The monthly deposits necessary to accumulate $12,000 after 5 years in an account earning 4.75% compounded monthly.
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