Out of those, 32 are female, therefore 32 is the condition that satisfies our probability question (the numerator in the probability formula).

The probability that at least one child is a boy, given that the first born is a girl.

Ask Question Asked 4 years, 11 months ago. For example, a coin toss will yield either a heads or a tails; a birth will yield either a boy or a girl.

If we already know that at least one of the children is a boy most of us agree to use the (conditional) probability that out of the three possible, and equally probable,.

Comment.

. Two short problems. Find What is the probability for one of the children to be a girl given that; One of them is a boy, One of.

.

What is the probability that both children are boys To answer this question we suppose that it is equally likely to have boys or girls. . The other possibilitiestwo boys or two girlshave probabilities 14 and 14.

Consider a family that has two children. A die is rolled.

.

.

For example, a coin toss will yield either a heads or a tails; a birth will yield either a boy or a girl. Click hereto get an answer to your question Assume that each born child is equally likely to be a boy or a girl.

What is the probability that both children are boys To answer this question we suppose that it is equally likely to have boys or girls. Lebo has 3 blue pens, 2 red pens, 5 black pens and 2 pencils in his pencil case.

2.

The following two-way contingency table gives the breakdown of the population in a particular locale according to age and number of vehicular moving violations in the past three years.

A couple decides to keep having children until they have at least one boy and at least one girl, and then stop.

Questions 1 - 4 Do these problems using the conditional probability formula P (A B) P (A B) P (B). . Given that they have at least one boy then our total possibility is BB, BG, GB.

Modified 4 years ago. . Tree Diagram and Conditional Probability. 0 Permalink. The conditional probability of interest is.

Questions 1 - 4 Do these problems using the conditional probability formula P (A B) P (A B) P (B).

The probability that at least one child is a boy, given that the first born is a girl. Event A, the parents have two girls.

Many readers incorrectly reason that the conditional probability of two boys given at least one is 1 2, as opposed to the correct 1 3, since they reason that the Jones child not attending the dinner is equally likely to be a boy or a girl.

Determine the probability of having 1 girl and 3 boys in a 4-child family assuming boys and girls are equally likely.

If a family has two children, what is the conditional probability that both are girls given that (i) the youngest is a girl, (ii) at least one is a girl Solve Study Textbooks Guides.