Question

The accompanying cumulative relative frequency distribution summarizes data obtained in a study of the ending overages (in dollars) for the cash register balance at a business. Complete parts a through c below Click the icon to view the cumulative frequency distribution of the overages. a. Determine the proportion of the days in which there were no shortages. (Type an integer or a decimal. Do not round.) b. Determine the proportion of the days the cash register was less than $20 off assuming that the class interval values cannot occur (Type an integer or a decimal. Do not round.) c. Determine the proportion of the days the cash register was over by less than $40 (excluding shortages) or short by at most $20 (excluding overages). (Type an integer or a decimal. Do not round.) 1: Cumulative Frequency Distribution of Overages Class - 60.00- <-40.0O - 40.00-< 20.0O - 20.00- <00.00 00.00-< 20.00 20.00- <40.00 40.00- <60.00 Relative Frequency 0.04 0.04 0.16 0.30 0.42 0.04 Cumulative Relative Frequency 0.04 0.08 0.24 0.54 0.96 1.00 Frequency 15 21

Answer 1

a) Pl no shortage) = Ploso) I-plxco) I-0.24 c 0.76 76 /: 0.549 b) p\x220) evidnon 54 J. S 9) P(-20% *(40) Plxs 40) P(xc-20) 0.88 0.96 -0.08 88 11: