Show all work and setups. Respond using complete sentences when appropriate.

1.A survey of 64 families yields the following data for the number of children per family.

0

1

1

2

2

3

4

5

0

1

1

2

2

3

4

5

0

1

2

3

5

9

0

1

1

2

2

3

4

6

0

1

2

2

2

3

4

6

0

2

2

3

5

0

1

2

2

2

3

4

6

0

1

2

2

3

3

4

8

1

2

3

3

8

a.Put this data into a frequency table.Compute the proportions as percentages to 1 decimal place.

Number of Children

Number of Families

(Frequencies)

Proportions of Families

0

8

8/64 = 0.125 = 12.5%

1

2

3

4

5

6

7

8

9

Total

b.What is the mode value for the number of children per family. Use this answer in a meaningful sentence.

c.How many families have 4 or fewer children?

d.What proportion of families in the survey have 1 or 2 children?Use this answer in a meaningful sentence.Write as a percent rounded to one decimal place.

e.If you randomly select a family, what is the probability that family will have 3 children?Write as a percent rounded to one decimal place.

f.If you randomly select a family, what is the probability that family has at least 6 children?Write as a percent rounded to one decimal place.