3033

3437

3841

4245

4649

5053

5457

5861

6265

6669

7073

f

1

0

2

1

3

4

5

5

4

2

3

30

fr

0.03

0.00

0.07

0.03

0.10

0.13

0.17

0.17

0.13

0.07

0.10

1.00

1. What is the range of the data (show yourcalculation).
2. What is the class width?
3. What is theupper classlimit of the first interval?