Create a histogram and a percentage polygon

Reference no: EM1317688

Structure of frequency distribution and percentage polygon.

The following data represent the cost of electricity during July 2006 for a random sample of 50 one-bedroom apartments in a large city:

Raw Data on Utility Charges ($)

96	171	232	178	147	102	153	197	127	82
157	185	90	116	172	111	148	213	130	165
141	149	206	175	123	128	144	168	109	167
95	163	150	154	130	143	187	166	139	149
108	119	183	151	114	135	191	137	129	158

a. Form a frequency distribution and a percentage distribution that have class intervals with the upper class limits $99, $119, and so on.

b. create a histogram and a percentage polygon.

c. Form the cumulative percentage distribution and plot a cumulative percentage polygon.

d. Around what amount does the monthly electricity cost seem to be concerned?

Reference no: EM1317688

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