1 / 7

Girl or Boy?

Girl or Boy?. Probability. The Problem…. In a two-dog family, one dog is a boy. What is the probability that the other dog is a girl?. Our Choices. In a two-child family, there are four and only four possible combinations of children. What we know.

marvin-albert
Download Presentation

Girl or Boy?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Girl or Boy? Probability

  2. The Problem… In a two-dog family, one dog is a boy. What is the probability that the other dog is a girl?

  3. Our Choices In a two-child family, there are four and only four possible combinations of children.

  4. What we know When we know that one child is a boy, there cannot be two girls, so the sample space shrinks to:

  5. What’s left 2 of the sample spaces that are left include girls

  6. The Answer!!! 2 3 2 sample spaces included girls 3 total sample spaces left

  7. Resources Word problem : http://mathforum.org/dr.math/faq/faq.boy.girl.html Photos: http://www.sxc.hu/photo/579419

More Related