The table below contains data about the cost of electricity during a recent month for a random sample of 30 one-bedroom apartments in a large city. Complete parts (a) through (c) below
95,206,145,163,92,170,139,210,125,94,153,133,107,183,113,169,177,101,183,117,113,149,178,125,165,162,142,121,150,135
a. Construct a frequency distribution and a percentage distribution that have class intervals with the upper-class boundaries $99, $119, and so on.
1-Construct a frequency distribution? 2-Construct a percentage distribution? 3-Construct a cumulative percentage distribution? |
b-Around what amount does the monthly electricity cost seem to be concentrated? Choose the correct answer below?
Between $-----and----- $?
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