Question

elina has a 22% chance that her child will have spina bifida. if she births two child, what is the percentage that none of them with have spina bifida?

Answer 1

77%

Explanation:

Since the chance of it happening is 22%, the chance of it not happening is 88%.

To find the probability that none will have it, we have to multiply the probabilities together:

0.88(0.88) = 0.7744 or 77%