LrTrChVIIISIVProbability - Dr. Latif. Math 131(043)8.4:...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Dr. Latif. Math 131(043)8.4: Probability. Pg:1 Ch : 8 : Probability . 8 . 4 : Probability 1.402TAN24. A pair of fair dice is cost. What is the probability that: a. The sum of the numbers shown uppermost is less than 5? b. At least one 6 is cast? a. The required event is E  1,1 , 1,2 , 1,3 , 2,1 , 2,2 , 3,1  and so P E P  1,1  P  1,2  ... P  3,1  1 36 1 36 ... 1 36 1 6 (six terms) b. The required event is F  1,6 , 2,6 ,..., 5,6 , 6,1 ,..., 6,6  , and so P F P  1,6  ... P  6,6  1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Dr. Latif. Math 131(043)8.4: Probability. Pg:2 1 36 1 36 ... 1 36 (eleven terms) 11 36 . 2.403TAN39. Consider the composition of a three-child family at which the children were born at different times. Assume that a girl is as likely as a boy at each birth. What is the probability that: a. There are two girls and a boy in the family? b. The oldest child is a girl? c. The oldest child is a girl and the youngest child is a boy. Let G denote a female birth and let B denote a male birth. Then the 8 equally likely outcomes of this experiment are 2
Background image of page 2
Dr. Latif. Math 131(043)8.4: Probability. Pg:3 GGG GGB GBG BGG BGB BBG GBB BBB . a. The event that there are two girls and a boy in the family is E GGB , GBG , BGG Since there are three favorable outcomes, P E 3/8. b. The event that the oldest child is a girl is F GGG , GGB , GBG , GBB . C. The event that the oldest child is a girl and the youngest child is a boy is G GGB , GBB Since there are two favorable outcomes, P F 1/4. 3.403TAN40. Airfone Usage The number of planes in the fleets of five leading airlines that contain Airfones is shown in the 3
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Dr. Latif. Math 131(043)8.4: Probability. Pg:4
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/17/2009 for the course MATH MATH131 taught by Professor Dr.rajalatif during the Spring '09 term at King Fahd University of Petroleum & Minerals.

Page1 / 15

LrTrChVIIISIVProbability - Dr. Latif. Math 131(043)8.4:...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online