Hal, zelda, maya, and jason each recorded the height and age of five classmates. they used the data to create the tables below. hal: age 15, 14, 16, 12, 13 height (inches) 60, 61, 62, 63, 64 zelda: age 12, 14, 16, 14, 12 height (inches) 60, 61, 62, 63, 64 maya: age 12, 12, 12, 12, 12 height (inches) 56, 62, 64, 58, 67 jason: age 12, 13, 12, 14, 15 height (inches) 50, 54, 57, 60, 68 in which student’s data can height be considered a function of age? hal zelda maya jason

In this problem, we explore the effect on the standard deviation of multiplying each data value in a data set by the same constant. consider the data set 14, 6, 8, 15, 15. (a) use the defining formula, the computation formula, or a calculator to compute s. (round your answer to one decimal place.) s = 4.28 (b) multiply each data value by 3 to obtain the new data set 42, 18, 24, 45, 45. compute s. (round your answer to one decimal place.) s = 12.83 (c) compare the results of parts (a) and (b). in general, how does the standard deviation change if each data value is multiplied by a constant c? multiplying each data value by the same constant c results in the standard deviation remaining the same. multiplying each data value by the same constant c results in the standard deviation being |c| times as large. multiplying each data value by the same constant c results in the standard deviation increasing by c units. multiplying each data value by the same constant c results in the standard deviation being |c| times smaller. (d) you recorded the weekly distances you bicycled in miles and computed the standard deviation to be s = 3.8 miles. your friend wants to know the standard deviation in kilometers. do you need to redo all the calculations? yes no given 1 mile ≠1.6 kilometers, what is the standard deviation in kilometers? (enter your answer to two decimal places.)