Tham khảo tài liệu 'math word problem demystified phần 10', ngoại ngữ, anh ngữ phổ thông phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | LESSOR 22 Word Problems in Probability b There are six outcomes in the sample space and there are two outcomes that are greater than 4 that is 5 and 6 hence 1 P a number greater than 4 I c There are six outcomes in the sample space and five numbers less than six hence P a number less than six d There are six outcomes in the sample space and no numbers are greater than six hence P a number greater than six ị 0. 2. a There are 36 outcomes in the sample space and there are five ways to get a sum of 8 2 6 3 5 4 4 5 3 and 6 2 hence P sum of 8 . b There are 36 outcomes in the sample space and six ways to get doubles 1 1 2 2 3 3 4 4 5 5 and 6 6 hence P doubles 1 c There are 36 outcomes in the sample space and there are 3 ways of getting a sum greater than ten that is a sum of 11 or 12 5 6 6 5 and 6 6 . Hence P sum greater than 10 - jL. d There are 36 outcomes in the sample space and six ways to get a sum of 4 3 or 2 1 3 2 2 3 1 1 2 2 1 and 1 1 . Hence P sum less than 3 . 3. a There are 52 outcomes in the sample space and one six of diamonds hence P six of diamonds b There are 52 outcomes in the sample space and four queens hence P queen - c There are 52 outcomes in the sample space and 13 hearts hence P heart 52 . d There are 52 outcomes in the sample space and 13 clubs and 13 spades hence P club or spade - 52 52 2- e There are 52 outcomes in the sample space and 26 red cards 13 diamonds and 13 hearts hence P red card II 1 4. The sample space for three children is BBB GGB BBG GBG BGB BGG GBB GGG LESSON 22 Word Problems in Probability Oh a There are 8 outcomes in the sample space and one way to get all boys BBB hence all boys g. b There are 8 outcomes in the sample space and two ways to get all boys or all girls BBB and GGG hence P all boys or all girls 1 3- c There are 8 outcomes in the sample space and three ways to get two boys and a girl BBG BGB GBB hence exactly 2 boys and 1 girl j. 5. There are 36 outcomes in the sample space and six ways to get a 7 and two ways to
