a*****g
发帖数: 1320 | 1 )If MINH picks a letter of the alphabet at random, what is the probability it occurs in the name "HETTIESBURG, MISSISSIPI"? Express your answer a common fraction.
2) Three fair six-sided number cubes, each with faces labeled 0,2,4,6,8,10, are rolled. What is the probability that the sum of the numbers rolled is greater than 20? Express your answer as a common fraction.
3) In the patterns of dots with p1,p2,p3 and p4, each successive pattern of dots has one more row and one more column. What is the ratio of the number of dots in p50 to the number of dots in p25? Express your answer as a common fraction. | a*****g
发帖数: 1320 | 2 ONE MORE: HOW MANY FIVE DIGIT INTERGERS ARE PERFECT SQUARE?
PROBABILITY
【在 a*****g 的大作中提到】
: )If MINH picks a letter of the alphabet at random, what is the probability it occurs in the name "HETTIESBURG, MISSISSIPI"? Express your answer a common fraction.
: 2) Three fair six-sided number cubes, each with faces labeled 0,2,4,6,8,10, are rolled. What is the probability that the sum of the numbers rolled is greater than 20? Express your answer as a common fraction.
: 3) In the patterns of dots with p1,p2,p3 and p4, each successive pattern of dots has one more row and one more column. What is the ratio of the number of dots in p50 to the number of dots in p25? Express your answer as a common fraction.
| s*****a
发帖数: 353 | 3 217个（大约。。。）
【在 a*****g 的大作中提到】
: ONE MORE: HOW MANY FIVE DIGIT INTERGERS ARE PERFECT SQUARE?
:
: PROBABILITY
| a*****g
发帖数: 1320 | 4 Right! Thanks.
【在 s*****a 的大作中提到】
: 217个（大约。。。）
| H*******g
发帖数: 162 | 5 1) (1/26)^21?
2) 25/72
3) 50^2-25^2=1875
it occurs in the name "HETTIESBURG, MISSISSIPI"? Express your answer a
common fraction.
, are rolled. What is the probability that the sum of the numbers rolled is
greater than 20? Express your answer as a common fraction.
of dots has one more row and one more column. What is the ratio of the
number of dots in p50 to the number of dots in p25? Express your answer as a
common fraction.
【在 a*****g 的大作中提到】
: )If MINH picks a letter of the alphabet at random, what is the probability it occurs in the name "HETTIESBURG, MISSISSIPI"? Express your answer a common fraction.
: 2) Three fair six-sided number cubes, each with faces labeled 0,2,4,6,8,10, are rolled. What is the probability that the sum of the numbers rolled is greater than 20? Express your answer as a common fraction.
: 3) In the patterns of dots with p1,p2,p3 and p4, each successive pattern of dots has one more row and one more column. What is the ratio of the number of dots in p50 to the number of dots in p25? Express your answer as a common fraction.
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