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A purse contains $101 in Anthony dollars and $1 in pennies. Smith is allowed to draw and keep coins, one at a time, until he has drawn 30 pennies. Find the variance of the random variable.
Confidence interval for the population mean.
A mortar shell is s feet above the ground after t seconds, where s=f(t)= -16t + 510t +63. Find the height of the shell 15 seconds after it is fired.
suppose x has a geometric distribution with success probability 13.determine the probability distribution of y xx1
Determine the standard score for the value x=452 realative to its sample, where the sample mean is 500 and the standard deviation is 32.
If average size in square feet of homes built is 1810, determine maximum and minimum sizes of homes contractor must build. Suppose that standard deviations are 92 square feet.
Suppose the regression equation that has been used to estimate the value of existing homes is as follows; Interpret the meaning of the slopes of this equation.
Draw a back-to-back stem-and-leaf plot, with drug users on the right and discuss similarities and differences between the two data sets. There should be three things you look at when comparing these - location, variation, and general shape.
The following frequency distribution was obtained. The data values are in hours. Construct a histogram for the data .
which of the following correlation coefficients represents the variables with the weakest degree of
The local municipality claims that since the percentage of intersections that had an accident last year decreased from the prior year, the city is now safer. What are the hypotheses for this situation? Is the city really safer?
Does this sample indicate a smaller average? Use α = 0.05 and assume a normally distributed population.
students in jane smiths math class took the scholastic aptitude test. five of the students were randomly selected.
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