Suppose that the amount of a weekly grocery bill of all households in a metropolitan area is distributed with a mean of $140. In a random sample of 49 households selected from this metropolitan area, the sample standard deviation is $35. (Use applet!) a. What statistic is used to analyze this situation? b. Find the statistic and probability that average amount of grocery bill of such a sample will be: i. more than $145, ii. less than $140, iii. between $132 and $148

The factorization of 8x3 -125 is (2x-5)(jx2 +kx+25)

What properties allow transformation to be used as a problem solving tool

(c) compare the results of parts (a) and (b). in general, how do you think the mode, median, and mean are affected when each data value in a set is multiplied by the same constant? multiplying each data value by the same constant c results in the mode, median, and mean increasing by a factor of c. multiplying each data value by the same constant c results in the mode, median, and mean remaining the same. multiplying each data value by the same constant c results in the mode, median, and mean decreasing by a factor of c. there is no distinct pattern when each data value is multiplied by the same constant. (d) suppose you have information about average heights of a random sample of airline passengers. the mode is 65 inches, the median is 72 inches, and the mean is 65 inches. to convert the data into centimeters, multiply each data value by 2.54. what are the values of the mode, median, and mean in centimeters? (enter your answers to two decimal places.) mode cm median cm mean cm in this problem, we explore the effect on the mean, median, and mode of multiplying each data value by the same number. consider the following data set 7, 7, 8, 11, 15. (a) compute the mode, median, and mean. (enter your answers to one (1) decimal places.) mean value = median = mode = (b) multiply 3 to each of the data values. compute the mode, median, and mean. (enter your answers to one (1) decimal places.) mean value = median = mode = --