Question

Data were collected on the number of hospital stays per 65 year-old adult during the previous five years. The data appear below. Hospital Stays per 5 Year Period Number of hospital Number of stays adults 532 280 99 12. Compute the mean a. 1.66 b. 1.22 c. 1.18 d. 0.50 13. Compute the median a. 1.00 b. 2.00 c. 4.00 d. 6.00 14. Compute the standard deviation a. 1.66 b. 1.40 c. 1.68 d. 0.50 15. Compute the coefficient of variation a. 1.66 b. 1.40 c. 1.37 d. 0.50

Answer 1

polation Consider frequency ci) fixi fixi 0-1923) - 1.495 (1-1993 396 :0.05 62-1-2.39=0.60 (3-1.923= 3.15 843 3412 7.733 445 2825 14.264 29.821 114 684 Efixi: 1540 Eli: 1104 Elixi: 1350 Mean(si) 1350 Elixi Efi - 1.823 option - 1104 Medion ! when no. of Observation is odd, then median is position. . When no. of observation is even , then the median is the average of values at Chyth & (ot)th positions : Here No. of badopita! 532 + 980 +99 + 24 +58 +89 +19 adults : 1104 (This is ever no:)

10. MD of adults is even So the median is al the average of the (3)". (login)"? 559 ) position & Co 3* LUDNE 195 ) position (3-11) Cult .)5535 position to find out 550 & 5529% position, we add up the frequencies Scores frequency position 532 538 + 980: 819 812799-911 911497: 938 938+58 - 996 996 +89: 1085 1085719 - 1104 The Score at 550th position = ! ne Score at 553th position: 1 . median average of 502 the 55355 position :: Ang - option @

Standard deviation (6) - Eficxi-l) n = 1104 (532 x 1.495)+(280X0.05) + ( 99 x0.60 + (27*3-1987 --.t (19-22.831) 11077

3105-1180 1104 : 1.67708 2849 -1.68 cophon C) coefficient of variation - SO x 400 mooo 400 = 1.68 xHOD 1:22 : 1:37