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Defects. A consumer organization inspecting new cars found that many had appearance defects (dents, scratches, paint chips, etc.). While none had more than three of these defects, 7% had three, 11% two, and 21% one defect. Find the expected number of appearance defects in a new car, and the standard deviation.
suppose a compact disk cd you just purchased has 8 tracks. after listening to the cd you decide that you like 4 of the
What does the law of large numbers tell us about what will happen if a gambler makes very many bets on red? If the gambler keeps on playing forever he must win.
how do you find the pooled standard deviation in an anova table?a. it is the mse.b. it is the msg.c. it is the square
Scenario: The data from a survey that your organization is using to monitor and evaluate a product launched last year indicates that many customers are dissatisfied. You call a meeting to discuss the survey data. During the meeting, one person tal..
A store selling newspapers orders only x=4 of a certain newspaper because the manager does not get many calls for that publication. If the number of requests per day follows a Poisson distribution with mean 3.
At the .01 significance level, is there a difference in the mean amount purchased on an impulse at the two stores? Explain these results to a person who knows about the t test for a single sample but who is unfamiliar with the t test for independe..
a. If cork diameter is a normally distributed variable with mean value 3.04 cm and standard deviation .02 cm, what is the probability that a randomly selected cork will conform to specification?
Let X (t) be a WSS random process with mean and autocorrelation function- Find the mean function oF. - Find the autocorrelation function of.
Vision. It is generally believed that nearsightedness affects about 12% of all children. A school district tests the vision of 169 incoming kindergarten.
choose independently two number B and C at random from the interval [-1,1] with uniform distribution, and consider the quadratic equation x^2+Bx+C=0. Find the probability that the roots.
Find the probabilities exactly one heart appears in my hand (of 13 cards); at least 7 cards from a single suit appear in my hand;
a firm seeks to receive a return of 12 on an investment of 100000. if potential profits are normally distributed with a
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