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Manufacturing and Product Development Staples has six special drafting pencils for sale, two of which are defective.
A student buys two of these six drafting pencils, selected at random. Let the random variable X be the number of defective pencils purchased. Construct the probability distribution for X.
Thus, for instance, in 36 of the couples the wife earned more and the husband earned less than $50,000. If one of the couples is randomly chosen, what is the probability that the husband earns less than $50,000;
You wish to learn the average age of an MBA student within 2 years and with 99% confidence. How large of a sample should you get?
consider the experiment of drawing two cards from a shuffled deck and then putting them back. what is the probability
for each equation below identify what type of equation it is linear or exponential which variable is the independent
In a sample of 30 randomly selected women, it was found that their mean height was 63.4 inches. From previous studies, it is assumed that the standard deviation is 2.4.
A random variable X has the following probability distribution:- Calculate the mean of X.- Calculate the variance of X.- Calculate the standard deviation of X.
what is the value of a such that p-a lt t lt a .90 for a t random variable with 16 degrees of freedom? answer to three
To get a C in history, Nandan must average 74 on four tests. Scores on the first three tests were 69, 74, and 65. What is the lowest score that Nandan can get on the last test and still receive a C?
Determine the least-squares regression line and calculate r.- What proportion of the variability in sock shipments is explained by the regression equation?
a box of plain chocolate candies comes in four different colours dark brown yellow red and blue. according to the
for the following sample8 1 51 5a. find the mean and the standard deviation.b. now change the score of x8 to x18 and
The sample sizes are unequal. Research question: Are the mean annual attendance rates the same for employees in these three departments?
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