• ### Statistics question?

1 answer · Mathematics · 9 months ago
• ### Help with compound interest?

1 answer · Mathematics · 1 year ago

Teams named East and West are playing a best-2-out-of-3 series of games. This means that the first team to win two games wins the series. (For example, in the NCAA College Baseball World Series, the two teams in the finals play a best-2-out-of-3 series.) If the first two games are won by the same team, the series is over. The 3rd game is played only... show more
Teams named East and West are playing a best-2-out-of-3 series of games. This means that the first team to win two games wins the series. (For example, in the NCAA College Baseball World Series, the two teams in the finals play a best-2-out-of-3 series.) If the first two games are won by the same team, the series is over. The 3rd game is played only if the teams are 1-1 after the first two games. In each game that is played, the probability that East wins is 0.58. So the probability West wins is 0.42. What is the probability that East wins the series? What is the probability that the series requires only two games? What is the probability that the team that wins the first game wins the series? What is the expected value for how many games are played?
1 answer · Mathematics · 1 year ago
• ### Math Problem?

Jan has 3 coins in her pocket, and they are all different from each other. jeremy has 3 coin in his pocket and they are all the same as each other. Jeremy as twice as much money as janice. What are the coins they each have?
Jan has 3 coins in her pocket, and they are all different from each other. jeremy has 3 coin in his pocket and they are all the same as each other. Jeremy as twice as much money as janice. What are the coins they each have?
1 answer · Mathematics · 1 year ago
• ### Each letter represents a different digit S E N D + MO R E ------------ M ON E Y rewrite in number form with working pls?

1 answer · Mathematics · 1 year ago
• ### Hi i need to clarify my doubt regarding calculus`1?

Fred the spherical cow is happily grazing on cubical grass pellets. He grows in volume at a rate of 20 cubic feet per day. When Fred s radius is 14 feet, at what rate is his surface area growing? when i calculted my answer was 2.857sq.ft / day. but it is wrong why?
Fred the spherical cow is happily grazing on cubical grass pellets. He grows in volume at a rate of 20 cubic feet per day. When Fred s radius is 14 feet, at what rate is his surface area growing? when i calculted my answer was 2.857sq.ft / day. but it is wrong why?
3 answers · Mathematics · 1 year ago
• ### Exercise of probability?

Hi! Can you help me with this exercise? The image has been attached :) Thanks!!
Hi! Can you help me with this exercise? The image has been attached :) Thanks!!
1 answer · Mathematics · 1 year ago
• ### How many different arrangements possible if 3 letters randomly selected from CHALLENGE?

How many different arrangements are possible if 3 letters are randomly selected from the word CHALLENGE and arranged into ‘words’?
How many different arrangements are possible if 3 letters are randomly selected from the word CHALLENGE and arranged into ‘words’?
2 answers · Mathematics · 2 years ago
• ### Newton & Lagrange interpolating polynomial of degree 2?

Hi guys. Based on the table, I need to prove and find the answer for the Newton & Lagrange interpolating polynomial of degree 2 for x= 10, is equal for both method. I get the answer for both method 98.33. While my friend got 60. Which one of us is correct?
Hi guys. Based on the table, I need to prove and find the answer for the Newton & Lagrange interpolating polynomial of degree 2 for x= 10, is equal for both method. I get the answer for both method 98.33. While my friend got 60. Which one of us is correct?
2 answers · Mathematics · 2 years ago
• ### Probability of a coin flip?

A true coin is flipped six times and the number of heads counted. Which of the following statements are correct? A) "The total probability of zero, one, five, and six heads is greater than the probability of a two heads outcome." B) "The relative probabilty of two heads is 0.234." C) "The ratio of the probability of the... show more
A true coin is flipped six times and the number of heads counted. Which of the following statements are correct? A) "The total probability of zero, one, five, and six heads is greater than the probability of a two heads outcome." B) "The relative probabilty of two heads is 0.234." C) "The ratio of the probability of the most probable outcome to the least probable outcome is twenty to one." D) "It is smarter to bet on a three heads outcome than on the combination of either a two or four heads outcome." E) "The least probable outcomes are zero or six heads." F) "The chances of the sixth flip being a head are better if the first five flips were all tails." G) "The most probable outcome is three heads." H) "The relative probability of three heads is 0.375."
1 answer · Engineering · 2 years ago
• ### Can you help me solve the following quiz?

In some country, the number plate of each car is an 8-digit number, where each digit can be a number from 0 to 9. Every number plate must be have at least two different digits in the same place from every other number plate. What is the maximum number of number plates that can exist in this country?
In some country, the number plate of each car is an 8-digit number, where each digit can be a number from 0 to 9. Every number plate must be have at least two different digits in the same place from every other number plate. What is the maximum number of number plates that can exist in this country?
1 answer · Mathematics · 2 years ago
• ### Can you help me solve this brain teaser? :)?

Ali Baba put all his treasure in a safe, which can be opened by a (big) number. He told 40 of his friends something one by one, so, that if any 29 of them team up, they can open the safe. (if only 28 team up, they won't be able to guess the number, not even close) The question is: what did Ali Baba say to his friends? Sorry for the grammar... show more
Ali Baba put all his treasure in a safe, which can be opened by a (big) number. He told 40 of his friends something one by one, so, that if any 29 of them team up, they can open the safe. (if only 28 team up, they won't be able to guess the number, not even close) The question is: what did Ali Baba say to his friends? Sorry for the grammar mistakes
1 answer · Mathematics · 2 years ago
• ### MATH HELP?

1)A tennis coach divides her 9-player squad into three 3-player groups with each player in only one group. How many different sets of three groups can be made? 2)The license plates on all karts in MarioLand contain three numbers followed by three letters. If you know that the MarioLand number system has 5 digits and the letter system has 3 letters,... show more
1)A tennis coach divides her 9-player squad into three 3-player groups with each player in only one group. How many different sets of three groups can be made? 2)The license plates on all karts in MarioLand contain three numbers followed by three letters. If you know that the MarioLand number system has 5 digits and the letter system has 3 letters, how many license plates can be created that have at least one three-piece palindrome? A three-piece palindrome is a string of three numbers that reads the same backward and forward, or a string of three letters that reads the same backward and forward. 3)How many even, three-digit positive integers have the property that two of the digits are equal, but not all three are equal?
1 answer · Mathematics · 2 years ago
• ### ∠ACB = ___°.?

△ABC. D is on side BC. CD = 2⋅BD. ∠ABC = 45°.　∠DAB = 15°. 　∠ACB = ___°.
△ABC. D is on side BC. CD = 2⋅BD. ∠ABC = 45°.　∠DAB = 15°. 　∠ACB = ___°.
2 answers · Mathematics · 3 years ago
• ### How to find elements of set S={n is a N I 133 divides 3^n +1}?

i tried 133=7*19,and found 3^9+1=133*148. But I don't know what to do next. Thank you
i tried 133=7*19,and found 3^9+1=133*148. But I don't know what to do next. Thank you
1 answer · Mathematics · 3 years ago