#### Graceisgoen1285

##### New Member
Okay so the problem is as follows :

A study of children in Caithness,Scotland classified them according to hair color. This table reports percentages based on 5387 children.

Fair=27%
Red=5.3%
Medium=39.7%
Dark=25.8%
Black=2.2%

1. What is the probability that the child will have red hair?

5387/5.3= 1016 will have red hair

2. What is the probability that the child will have either red or fair hair?
5387/32.3=167

3. What is the probability that the child will have neither dark nor black hair?
5387/72=75

4. What is the probability that the child will have Fair, Red, Medium, Dark, or black hair?

5387/100=54

Now thats how I did it, but I think I'm completely wrong. Can anyone please help me?

#### JohnM

##### TS Contributor
You're just making them more complicated than they need to be...

1. What is the probability that the child will have red hair?
.053

2. What is the probability that the child will have either red or fair hair?
.323

3. What is the probability that the child will have neither dark nor black hair?
1 - (.258 + .022)

4. What is the probability that the child will have Fair, Red, Medium, Dark, or black hair?
sum of all the probabilities given