Graphical Summaries For Qualitative Data Bar Graph Worksheets (Page 2 of 2) in pdf

Graphical Summaries For Qualitative Data Bar Graph Worksheets Page 2

(b) Construct a relative frequency distribution:

Type of Vehicle

Frequency

Relative Frequency (by hand)

Relative Frequency (Minitab)

Small car

276200

0.198147

Midsize car

333515

0.239264

Luxury car

98414

0.070602

Minivan

81355

0.058364

SUV

112328

0.080584

Pickup truck

191664

0.137500

Cross-over truck

300442

0.215538

Total:

_________________ _________________________

________________

To have Minitab calculate the Relative Frequency for you:

(a) Get the total of all the frequencies by selecting “Calc” then “Column Statistics” then “sum”____________

(b) Divide all the frequencies in C2 by selecting “Calc” again “Calculator”

For “Store the result”, type in “C3”

For the “Expression” , type in “C2/the number you got for the total in part (a)

Click “Ok” and the resulting relative frequencies will show up in column C3.

Rather than making a new, separate graph, just use your first chart and fill in the percentages that go

with each frequency.

Chart of Frequency

350000

300000

250000

200000

150000

100000

50000