700 families were interviewed and the number of children per family was determined. The data were summarized as follows: Children Families XXXXXXXXXX120 1. XXXXXXXXXXx XXXXXXXXXX330 3. XXXXXXXXXX90 1....

700 families were interviewed and the number of children per family was determined. The data were summarized as follows: Children Families 0 120 1. x 2. 330 3. 90 1. Find the value of "x a. 10b. 180c. 160d. 170e. 480 2. What is the total number of children included in this study? (total children in the 500 families) a. 800b. 550c. 1090d. 860e. 490 3. If you randomly select a family from the 700 families interviewed, what is the probability that the selected family has 3 children? a. 0.04b. 0.09c. 0.2d. 0.85e.none