We surveyed children to see if they liked to eat apples We l
We surveyed children to see if they liked to eat apples. We looked at two groups of children: ages 3-7 and ages 8-12. For a random selection, the probability of 3-7 year old or a 8-12 year old liking apples or not is given in the following table:
One of these children is selected at random.
a.) Find the probability the child likes apples.
b.) Find the probability the child is between the ages of 8-12.
c.) Find the probability the child is aged 8-12 and likes apples or is aged 3-7 and likes apples.
| Likes Apple | Does Not Like Apples | |
| Ages 3-7 | 0.25 | 0.31 |
| Ages 8-12 | 0.30 | 0.14 |
Solution
a)the probability the child likes apples=0.25+0.30=0.55
b)the probability the child is between the ages of 8-12=0.30+0.14=0.44
c)the probability the child is aged 8-12 and likes apples or is aged 3-7 and likes apples=0.30+0.25=0.55
