He started from a graph where he found the solution to be between 1 and 2. using the lower and upper bounds from the graph, jacob did the following work for the first iteration. step 1 rewrite the equation so that it equals zero on one side. step 2 evaluate the rewritten equation at the lower and upper bounds. to find the solution that lies between 1 and 2, set these values as the lower and upper bounds while finding the solution. step 3 take the average of the lower and upper bounds. step 4 evaluate the rewritten equation at x = . step 5 since this value is positive, replace the previous lower bound so that the bounds are now x = and x = 2. where did jacob make a mistake, and what was the error? a. jacob made a mistake at step 5. he should have used x = as the new upper bound. b. jacob did not make any mistakes in the calculation process. c. jacob made a mistake at step 4. the actual evaluation of the rewritten equation is approximately -1.636. d. jacob made a mistake at step 2. the actual evaluation of the rewritten equation at x = 2 is 3.

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.)