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Produce a histogram showing the probaility distribution (probability of outcome on one axis, and outcome value on another axis). In percentage terms, if you rolled a die over and over again, how of
What are the mean, median, mode and standard deviation of potential outcomes for ONE roll of the die?
What is the probability of a sale given that the customer has a trade in? What is the probability that a customer has a trade in and a sale is made?
Consider a carton of twelve eggs, of which three are rotten. Suppose we randomly select five eggs. Compute the probability that there is at least one rotten egg among the selected eggs.
The reply has to be 300-400 words a) What are the characteristics of the standard normal distribution?
Assume that k has a prior distribution, which is Binomial(4; 0:2). A ball is drawn from the bag. Determine the posterior distribution of k if (a) the ball is red and (b) the ball is green.
Given the independent random variables X and Y with respective probability mass functions. Calculate the probability mass function of the sum Z = X + Y .
A six-sigma black belt quality engineer found that in a random sampl of 140 printed circuit boards, 18 are defective due to the result of certain nonconformity tests. At the 5% level of significanc
The following are the numbers of defective parts produced in a shift by 10 workers before and after going through a very rigorous training program (assuming normality):
A hospital would like to determine whether there is a relationship between the level of satisfaction of workers with working conditions and their job category. A random sample of 250 empl
For each of the variables below state what level of measurement it is and is it discrete or continuous
Assuming approximately normal distributions having equal variances for percent wear of tires each brand under test conditions, find a 95% confidence interval for muA - muB
Ten determinations of percentage of water in amethanol solution yield X= 0.552 and S = 0.037. If mu is the true percentage of water in the methanol solution, assuming normality, find:
A telemarketer makes 80 calls in a one day, with a 10% random success rate of making a sale. What is the average number of successes (sales) in a day? What is the expected statis
In the absence of a cosmic event such as a supernova, the detector would normally observe and average of two neutrino interactions per day. In this case, what is the probability of observing eight
An engineer is going to redesign an ejection seat for an airplane. The seat was designed by pilots weighing between 150 lb and 191 lb. The new population of pilots has normally d
Among the cameras with only a mechanical defect, 90% are repaired and returned, with the remainder being replaced with a new camera. And among the cameras with both an electrical and mechanical prob
A carton of eggs (assume a carton contains a dozen eggs) contains two eggs that are cracke. In a quality effort, two eggs are selected, at random, without replacement from the carton.
Singer suggests that although the right to sell blood does not threaten the formal right to give blood, it is incompatible with "the right to give blood, which cannot be bought, which has no cash v
You believe that there is about a 0.4 probability that company A will enter and a 0.3 probability that company B will release a product. You also believe that there is a 0.1 probability that both A
An educator wants to estimate the mean number of hours elementary school children watch television per day. How large a sample is needed if the educator wants to estimate the mean to within 0.5 hou
Owner of a store that sells CDs wants to estimate the mean amount of time a customer remains in the store. A random sample of 34 customers was observed, and found to have a sample mean time of 12.77
A company produces steel shafts for use in industry. It is known that 0.1% of the shafts are classified as scrap. A quality control inspector examines and classifies a random sample of 20 steel shaf
A sailor monitoring radar on board a U.S. warship has a 0.90 probability of correctly identifying the type of aircraft from information on the radar screen. Consider the next 14 identifications made