Hope this helped with ur problem
Answer:
Your question was incomplete, as the values are not given.
I guess these are the values you are talking about.
Hair Type Brown Blond Black Red Totals
Wavy 20 5 15 3 43
Straight 80 15 65 12 172
Totals 100 20 80 15 215
Now w have to find out the probability of a child with red, straight hair.
Total no of children with straight hair are = 172
The children having straight red hair = 12
The probability of selected child = 12/172.
5 feet 11 inches plus 3 feet 5 inches equals 8 feet 16 inches, but there is 12 inches in a foot, and 16 inches - 12 = 4 inches, add the one foot you took away to 8. The answer is 9 feet 4 inches.
I think it would be -3x+y-1=0
