Score: 0 of 1 pt 3.2.37 Find the standard deviation, s, of sample data summarize

Question

Score: 0 of 1 pt 3.2.37 Find the standard deviation, s, of sample data summarized in the freudibtion table below by using the formuila beio, where x represents the dass mpont Score: 0%, 0 of 11pts em f represents the class froquancy, and n represents the totail number of sample values. Also, compare the compuled standard deviation to the standard deviation oblained from the original list of data values, 11.1 202-2 nin-1) 9099 0-39 60-69 31 Frequency Sardad deviaton.(Round toore dom. plan as needed) urchase O Course Too Enter your answer in the nswer box and then click Check Answer Check An Cear All

Explanation / Answer

sum(f*x^2)= 608962.00

sum(fx) = 7216.00

n= sum(Fi)= 88

s= =SQRT((88*608962-7216^2)/(88*(88-1)))

14.0810462

14.1

interval Xi Fi Xi*Fi Xi^2*Fi 30-39 34.50 1.00 34.50 1190.25 40-49 44.50 4.00 178.00 7921.00 50-59 54.50 4.00 218.00 11881.00 60-69 64.50 1.00 64.50 4160.25 70-79 74.50 18.00 1341.00 99904.50 80-89 84.50 29.00 2450.50 207067.25 90-99 94.50 31.00 2929.50 276837.75 sum 451.50 88.00 7216.00 608962.00

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