Question

Table 5-A.4 Ages of 61 Patients Discharged from DRG 127,
Heart Failure and Shock

).pdf-Adobe Acrobat Reader DC w Help 9780763765262_C.. X 142 (34 of 34) Jones & Bartlett Learning, LLC. NOT FOR SALE OR DISTRIBUTION. Chapter 5: Measures of Central Tendency and Variability Table 5-A.4 Ages of 61 Patients Discharged from DRG 127, Heart Failure and Shock 65 63 42 54 63 84 72 64 64 75 8o 64

a. Use statistical software to calculate
the mean,median,mode,
variance, and standard devia-
Exercises for Solving Problems | 139
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tion for the ungrouped frequency
distribution and to
prepare a frequency table.
b. Group ages into class intervals.
Prepare a table that displays
the frequencies for each class
interval, the cumulative frequency,
the relative proportion,
and the cumulative percentage.
c. Compute the mean, median,
mode, variance, and standard
deviation for the grouped data.
d. Compare the results of the
grouped and ungrouped frequency
distributions.

Answer 1

R RGui (32-bit) File Edit View Misc Packages Windows Help >:#user defined function to get node getmode < function (v) Lniqv<-unique (v) tuniqv [which.max (tabulate (match (v, unigv))) factual data c (37,37,39, 39, 42,47,47, 47,49, 51, 51, 51, 52, 53, 54, 54, 56,57,57, 59, 60, 60, 61,63, 63, 63,64,64, 64, 64,65, + 65, 66,66, 69,70, 72,73, 73, 75, 75,76, 76,77,77 77.78.79,8o,ao, 80, 30,82,83,83,84,85, 86,87,88, 83) > #finding mean, median, mode, variance, standard deviation of ungrouped data XF mean (x) :median (x):getmode (x) :var (x) sd (x) I11 65.57377 [11 65 [1] 64 [11 202.782 [11 14.24015 > #max and min value range (x) [11 37 88 >1 #creating class intervals breaks-seg (35,95, by 10) group x=cut (x, breaks, right=FALSE) > #calculating frequency, cumulative frequency, relative propotion, cumulative percentage for each classes freg table (group x) u freg cumsum (freq) i rel prop freg/sum (freq)

#max and min value 111 37 88 reating class intervals s breaks-geg (35, 95, by 10) group x-cut (x, breaks, right FALSE ting frequency, cumulative frequency relative propotion, cumulative percentage tor each classes freqtable(group x) cu freq cumsum (freq) rel prop-freq/sum (freq) cu percentagetcumsum (freq) /sum (freg)) 100 Fconstruct the frequency table mat-matrix (0, 6,5) mat cbind (freq, cu freq, rel prop, cu percentage) mat freq cu freg rel prop cu percentage 8 196721 16 0.1803278726.229508 [35, 45)5 145,55)11 [55, 65): 14 65,75)9 5 0.08196721 30 0.22950820 … 49.180328 39 0.14754098 56 0.2786885291 803279 61 0.08196721100.000000 175,85) 17 E85,95)5