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Suppose that two different tests A and B are to be given to a student chosen at random from a certain population. Suppose also that the mean score on test A is 85 and the standard deviation is 10; that the mean score on test B is 90 and the standard deviation is 16; that the scores on the two tests have a bivariate normal distribution; and that the correlation of the two scores is 0.8. If the students score on test A is 80, what is the probability that his score on test B will be higher than 90?
For monthly volume of 300 tables, find out total cost, total revenue and profit.
A portion of the data is shown in the accompanying table; see the text website for the complete data set, labeled Bids.
q1. determine the value of the coefficient of correlation for the following datax15829687110436y349510301322550q2. a
correlation concerns the relationship between the values of variables. regression analysis determines the nature of
Draw a scatter plot of the data.- Do the data appear to be roughly linear?- Do you see any evidence of outliners?
A sample of 18 observations taken from a normally distributed population produced the following data.
The data is shown in the following table. List each of the assumptions for performing an ANOVA and for each assumption evaluate whether the described study meets the assumption.
A committee of 15 members is voting on a proposal. Each member casts a yea or nay vote. On a random voting basis, what is the probability that the final vote count is unanimous?
Define and discuss the following elements of web analytics: Goals, events, and key performance indicators (KPI).
1. Find the probability of at least one offer. What is the probability that Julie is offered at least one of the three jobs?
More than 19 of them eat this brand of cereal 3) between 12 and 17 (inclusive) of them eat this brand of cereal? 4) find the mean and standard devation.
let x have an exponential distribution with mean sigma.a find the first quartile q1b how far is the first quartile
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