Question

1. Write the class width of a frequency distribution which has classes: 15 – 21 and 22 – 28.
2. Write all class boundaries for the frequency distribution above.
3. Write all midpoints of the classes.
4. Write all lower class limits.
5. Write all upper class limits.
6. Write all values represented by the stemplots: 7 | 0 4 4 3
7. Create a dotplot for the data: 1 1 1 2 2 2 2 2 3 3 4 4 4 4 4 4 4 5 5 5 5 5 8 8 8 9 10
8. Create a stemplot for data at #7 above.

Answer 1

1. Write the class width of a frequency distribution which has classes: 15 – 21 and 22 – 28.

Answer: Class Width= Upper Limit  -Lower  Limit  =21-15=6

1. Write all class boundaries for the frequency distribution above.

14.5-21.5 and 21.5 -28.5

1. Write all midpoints of the classes.

1. Write all lower class limits.

Lower Class Limits are 15 and 22.

1. Write all upper class limits.

Upper class limits are 21 and 28.

1. Write all values represented by the stemplots: 7 | 0 4 4 3

Answer 70 , 74, 74, 73

1. Create a dotplot for the data: 1 1 1 2 2 2 2 2 3 3 4 4 4 4 4 4 4 5 5 5 5 5 8 8 8 9 10

1. Create a stemplot for data at #7 above.

Stem	Leaf
1	0 0 0
2	0 0 0 0 0
3	0 0
4	0 0 0 0 0 0 0
5	0 0 0 0 0
6
7
8	0 0 0
9	0
10	0