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A car dealership has 7 red, 14 ?silver, and 5 black cars on the lot. Ten cars are randomly chosen to be displayed in front of the dealership
?(a) Find the probability that 4 cars are red and the rest are silver.
?(b) Find the probability that 5 cars are red and 5 are black.
?(b) Find the probability that 5 Cars are red and 5 are black.
The hardness of a piece of ceramic is proportional to the ?ring time. Assume that a rating system has been devised to rate the hardness of a ceramic piece and that this measure of hardness is a random variable that is distributed uniformly between..
Complete the tree diagram by filling in the missing path probabilities.- What is the probability that the car is repaired under budget, on time, and with company D?
using the data below generate a 95 confidence interval for the difference in proportions of women delivering preterm in
Assuming normal populations with equal standard deviations, does it appear that the two videotapes could be equally effective? What is the most accurate statement that could be made about the p-value for the test?
Presume a second independent poll of 1000 voters (800 from community 1 and 200 from 2). What is prob. A is predicted the winner by one poll and B is predicted the winner by the other?
a standard deviation of 7.3 years. What is the 95% confidence interval estimate for the average number of years served by all Supreme Court justices?
apples market share in the smart phone market represents a proportion of 0.1835. if apple conducts a survey nationwide
Let X1,..., Xn be a random sample from a two-parameter exponential population with density 1 f (x, θ, υ) = θ e-(x-υ) θ , for x ≥ υ, θ > 0. Find MLEs for θ and υ when both are unknown.
A student conducted a study on the height and weight of adult males. She collected data from 40 adult males and found that average height is 68.34 inches with a standard deviation of 14.02 inches
if a couple were planning to have three children the sample space summarizing the gender outcomes would be bbb bbg bgb
John suspects that a pair of dice is loaded (unfair). To test his hypothesis he rolls the dice 72 times. A total of seven comes up fifteen times
When you have categorical variables and count the frequency of the occurrence of each category your measure of central tendency is: (a) the mean
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