question archive The prices (in dollars) of various computer printers in a distributer's catalog are: 850 625 946 763 774 789 584 864 884 698 913 750 G9G 864 93 347 657 886 906 697 867 705 784 864 946 607 798 972 857 785 a) Determine the range of the data
Subject:MathPrice:2.87 Bought7
The prices (in dollars) of various computer printers in a distributer's catalog are: 850 625 946 763 774 789 584 864 884 698 913 750 G9G 864 93 347 657 886 906 697 867 705 784 864 946 607 798 972 857 785
a) Determine the range of the data.
b) Make an absolute frequency distribution using class width of $50
c) Make a relative frequency distribution.
d) Draw a bar graph, showing both absolute and relative frequency, for the data
Answer:
a) The Range of the data = Maximum value - Minimum value ( in the datset )
= 972 - 584
= 388
b) Given, Class width = 50
The required frequency distribution is given by,
Prices | Frequency |
580-629 | 3 |
630-679 | 1 |
680-729 | 4 |
730-779 | 4 |
780-829 | 5 |
830-879 | 6 |
880-929 | 4 |
930-979 | 3 |
Total | 30 |
c ) The relative frequency distribution is given by,
Prices | Relative frequency |
580-629 | 0.1000 |
630-679 | 0.0333 |
680-729 | 0.1333 |
730-779 | 0.1333 |
780-829 | 0.1667 |
830-879 | 0.2000 |
880-929 | 0.1333 |
930-979 | 0.1000 |
Total | 1.0000 |
d) The bar graph ( hiostogram ) showing frequency for the data is given by,
The bar graph ( hiostogram ) showing relative frequency for the data is given by,
( here we have used class boundaries along the x axis.)
PFA