# Counting and probability

10,602 results
1. ## Elementary Mathematics 2

Counting by ones, counting by tens, and counting by groups and singles: I was rather curious about how these methods of counting can be used to coordinate concepts and oral and written names for numbers.

asked by Tee on March 2, 2008
2. ## math

What are the similarities between organized counting and permutation? Explain using examples. I can only think of one similarity: they both use probability problems using counting P(event)= Number of favourable outcomes/Total number of possible outcomes.

asked by Jenna on October 15, 2016
3. ## statistics

12. The probability that the Dow Jones stock index will close above 18000 at the end of the year is an example of (a) classical probability. (b) subjective probability. (c) independent probability. (d) priory probability. 13. The probability calculated

asked by meri on June 30, 2015
4. ## statistics

15. The probability that a recently offered stock by a technology company will double in value within the next three months is 90%. The conclusion regarding this probability estimate was reached based on the opinion of the experts in the technology field

asked by meri on June 30, 2015
5. ## computer programing

okay I need a little help here on next program this what it say for first one which I have done. Create a counting program that counts backward from 100 to 1 in increments of 10. #include < stdio.h > int main () { Int i; while ( I > = 1 ) { printf ( “ %

asked by Poohboi on February 5, 2016
6. ## Math

What is the difference between counting the spaces between whole numbers and counting the tick marks?

asked by Mary on October 17, 2012
7. ## Statistics

An electronics company is about to launch a new product. If the serial number for each piece produced has the following format: LLNNN where L stands for any letter in the English alphabet and N is a number from 0 to 9, please answer the following: a)What

asked by Ewuraadjua on May 16, 2013
8. ## algebra 1

When studying probability, a method used for counting the number of possible outcomes is a ______. a.tree diagram b.dependent event c.relative frequency d.simulation A?

asked by Lily on September 21, 2010
9. ## Pre Algebra

Please help! This is due tomorrow... I don't understand how "Counting Outcomes and Theoretical Probability" works! There's a question that says: You toss two coins. Find P (one head and one tail). Please help!

asked by Lily on May 20, 2008
10. ## government

why are voting machines used? a. to eliminate the election process b. to increase the number of persons needed to administer elections c. to minimize vote-counting errors d. to encourave manual vote counting i think its c.

asked by jere on December 26, 2007

what does it mean readability formulas? I don't understand the concept can someone explain it to me please. As I understand it, this is how they come up with these readability numbers: ~~By counting the number of paragraphs in a piece of writing. ~~By

asked by Jasmine07202006 on October 16, 2006
12. ## fundamental concepts

Sarah counts her handful of marbles one at a time into a bowl. Each time she puts a marble into the bowl she says the next number name in sequence. This is an example of A. perceptual subitizing. B. classification. C. rote counting. D. rational counting.

asked by Daniela on February 4, 2015
13. ## algebra

The sum of the swuares of the first n counting numbers: 1² + 2² + 3² + 4² + 5² + 6² + ... +n² is given by the formula S = n(n+1)(2n+1) ------------ 6 Find the sum of the squares of all the counting numbers between 15 and 35. - answer is 12445; how

asked by jadacess on February 9, 2008
14. ## Reiny/ MATH Help

THANK YOU VERY MUCH!!! I forgot to say thank you for this answer the other night. There are 900 of those counting numbers with no restriction. Let's find all those that DON'T have a 2 in them there are 8 possible in the left spot , (no 2 or 0) but 9

asked by TO: Reiny on February 2, 2012
15. ## Probability :(

Brenda’s Bike Booth, at the mall, allows people to order a bike in their choice of 4 colors (Atomic Tangerine, Banana, Café Noir, or Dollar Bill) and the options of with or without a basket; with or without a horn. Given all of these options, what’s

asked by Katie on June 30, 2016
16. ## Probability

Brenda’s Bike Booth, at the mall, allows people to order a bike in their choice of 4 colors (Atomic Tangerine, Banana, Café Noir, or Dollar Bill) and the options of with or without a basket; with or without a horn. Given all of these options, what’s

asked by Katie on June 30, 2016
17. ## Grammar (Writeacher)

Revise the sentences below in which "who" or "whom" is used incorrectly. Then, indicate how "who" or "whom" is used in each sentence. 1. To play Kick the Can, the group must make a decision about whom will be counting. 2. Everyone else must hide from the

asked by Anonymous on May 15, 2013
18. ## finite math

A probability experiment was conducted in which the sample space of the experiment is S={1,2,3,4,5,6,7,8,9,10,11,12}, event F= {6,7,}, and event G={9,10,11,12}. Assume that each outcome is equally likely. List the outcomes of F and G?. find P(F or G) by

asked by carol on June 18, 2014
19. ## finite math

A probability experiment was conducted in which the sample space of the experiment is S={1,2,3,4,5,6,7,8,9,10,11,12}, event F= {3,6,7,}, and event G={9,10,12}. Assume that each outcome is equally likely. List the outcomes of F and G. find P(F or G) by

asked by carol on June 17, 2014
20. ## finite math

A probability experiment was conducted in which the sample space of the experiment is S={1,2,3,4,5,6,7,8,9,10,11,12}, event F= {6,7,}, and event G={9,10,11,12}. Assume that each outcome is equally likely. List the outcomes of F and G?. find P(F or G) by

asked by carol on June 18, 2014
21. ## maths

In a recent election for class president, Monika received 7 of the 10 votes and Alfred received 3 of the 10 votes that were cast by the class. When the machine was counting the votes, it malfunctioned and instead of giving the vote to the correct person,

asked by Anonymous on April 25, 2013
22. ## math

sally and hans started counting at the same time. sally counted on by tens from 300. hans counted back by hundreds. after six counts they had reached the same number. what number did hans start counting from?

asked by mike on September 20, 2017
23. ## statistics

Basic Concepts of Probability and Counting 1. License plates are made using 3 letters followed by 2 digits. How many different plates can be made if repetition of letters and digits is allowed? (26^3)(10^2) = (17576)(100) = 1,757,600

asked by Looking for someone to check my answer on March 16, 2010
24. ## Statistics

A raffle is being conducted with 50 tickets to be sold - one per customer. There are three prizes to be awarded. If the four organizers of the raffle each buy one ticket, what is the probability that the four organizers win: a) all of the prizes? b)

asked by Sean on July 3, 2009
25. ## Math

Matthew and Christopher set up their Teenage Mutant Ninja Turtles in a big circle, spacing each turtle equal distance from its neighbors. They then begin counting them in order around the circle, but they lost track of where they started before they finish

asked by hana on January 19, 2017
26. ## com155

• Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. • Bold each adverb (even the ones you are not counting as your original five, so that all adverbs are bolded in

asked by Anonymous on January 23, 2011
27. ## science(chem)

I have a question about distillation. Or heating in general. When something says heat for 1hr or 1/2 hr do you start counting when you turn on the hotplate? Or do you start counting when the mixture is boiling? I have a feeling that this issue is affecting

asked by ~christina~ on April 10, 2008
28. ## Probability

Roll two fair dice. what is the probability that you get a 2 and a 5 without regard to which is on which die? What is the probability of at least one 2 or one 5? What is the probability of a sum of 7? "what is the probability that you get a 2 and a 5

asked by Pam on December 3, 2006
29. ## Counting and Probability

What is the difference between the sum of the first 400 even counting numbers and the sum of the first 400 odd counting numbers?

asked by Mr. Alexander on August 27, 2015
30. ## algebra

true or false 1. fraction cant be written as decimal. 2. natural numbers are referred to as counting numbers.whole numbers consists of counting numbers.whole numbers consist of counting numbers as well as the number 0 3. intergers do not include negative

asked by samanthast on August 31, 2008
31. ## statistics

The below table shows the probabilities generated by rolling one die 50 times and noting the up face. What is the probability of getting an odd up face? roll 1 Probability 0.22 roll2 probability 0.10 roll 3 probability 0.18 roll 4 probability 0.12 roll 5

asked by sc on May 4, 2012
32. ## MS.SUE DAMON REED PSYDAG PLZ HELP ON MATH PLZZZ!!!

1. The table shows the results of spinning a four-colored spinner 50 times. Find the experimental probability and express it as a decimal. P(not red) = ? (1 point) a 0.6 b 0.4 c 0.2 d 0.3 3. The table below shows the results of flipping two coins. How does

asked by Alexia Marsel on May 20, 2016
33. ## Managerial accounting

[Figure 5-1]. - The receiving department of Owen has three activities: unloading, counting goods, and inspecting. Unloading requires a forklift that is leased for \$15,000 per year. The forklift is used only for unloading. The fuel for the forklift is

asked by Anonymous on January 8, 2013
34. ## Algebra 1

Can you please check my work and help me with the parts that I don't understand? For each event, choose the most appropriate term and solve the problem. 1. In a sweepstakes with nine hundred entries, the first winner selected receives the grand prize, the

asked by Caroline on April 27, 2014
35. ## math, help

I need help or hint on the setup: what is the probability that at least 2 students in a class of 36 have the same birthday? This is 1 minus the probability that all students have different birthdays. Suppose that the birthday of a student is completely

asked by student on July 15, 2007
36. ## Probability

How do I do this probability math problem,--- In 2000, the population of a certain country was about 195 million. The overall birth rate was 18.8 births per 100. The overall death rate was 11.8 deaths per 1000. Based on births & deaths alone(not counting

asked by AJC on July 23, 2010
37. ## Math - Statistics

I roll 12 4-sided dice. What is the probability that I roll at least one 2? What is the probability that I roll exactly three 2s? So i take it, on any give roll, the probability of rolling a 2 is .25 (25%); the probability of rolling something else must be

asked by Lauren on March 29, 2007
38. ## math

a liscence plate for a car must consist of a letter followed by two numbers. Each letter mus be an R, U or N. Each number must be a 2 or 6. Repetition of digits is permitted. Use the counting principle to determine the number of points in the sample.

asked by Joyce on June 12, 2011
39. ## Cards Probability

As shown above, a classic deck of cards is made up of 52 cards, 26 are black, 26 are red. Each color is split into two suits of 13 cards each (clubs and spades are black and hearts and diamonds are red). Each suit is split into 13 individual cards (Ace,

asked by Amanda on October 1, 2016
40. ## math probability

this is a probability question... Suppose you are asked to choose a whole number between 1 and 13 inclusive. (a) what is the probability that it is odd?...7/13 (b) What is the probability that it is even?...6/13 (c) what is the probability that it is a

asked by joe on December 18, 2008
41. ## Algerbra

The athletic department just received a shipment of footballs and basketballs. You don’t know how many there are, and don’t feel like counting. Here’s what you do know: each football costs 12 dollars, each basketball costs 15 dollars, and the credit

asked by samay on January 26, 2018
42. ## Math

A number cube is rolled 100 times. The results are shown in the table below. Outcome: 1, 2, 3, 4, 5, 6. Number of times rolled: 22, 18, 9, 11, 19, 21. Find the experimental probability and express it as a percent. P(even) = ? A. 50% B. 40% C. 29%* How does

asked by Help! pls on May 17, 2017
43. ## Math

A number cube is rolled 100 times. The results are shown in the table below. Outcome: 1, 2, 3, 4, 5, 6. Number of times rolled: 22, 18, 9, 11, 19, 21. Find the experimental probability and express it as a percent. P(even) = ? A. 50% B. 40% C. 29%* How does

asked by Xx on May 17, 2017
44. ## Probability-Cards

As shown above, a classic deck of cards is made up of 52 cards, 26 are black, 26 are red. Each color is split into two suits of 13 cards each (clubs and spades are black and hearts and diamonds are red). Each suit is split into 13 individual cards (Ace,

asked by peter on October 8, 2016
45. ## Cards

As shown above, a classic deck of cards is made up of 52 cards, 26 are black, 26 are red. Each color is split into two suits of 13 cards each (clubs and spades are black and hearts and diamonds are red). Each suit is split into 13 individual cards (Ace,

asked by Anonymous on October 8, 2016
46. ## Economics/Math

1. Assume that q and z are two random variables that are perfectly positively correlated. q takes the value of 20 with probability 0.5 and the value of zero with probability 0.5, while z takes the value of 10 with probability 0.5 and the value of zero with

asked by Susan on December 5, 2009
47. ## statistics

26. The law of permutations, combinations, and filling slots are the counting rules used to (a) determine the total number of possible outcomes (b) determine all possible combinations of “n” objects from a total of N objects (c) determine the odds of

asked by meri on June 30, 2015
48. ## math

In a game, a player tosses a coin 4 times. If the player gets 3 or 4 heads, he/she wins. What is the theoretical probability of winning this game? I just need to know the outcomes. I don't know how to get them. Please and Thank you. Coin 1: 50% Heads Coin

asked by Angela on May 30, 2007
49. ## Finite Math

An urn contains sixteen red balls and seventeen white balls. A sample of three balls is selected at random and the number of red balls observed. Determine the probability distribution for this experiment: Number of Red Balls/Probability 0...Probability=?

asked by Amanda on April 5, 2012
50. ## Statistics

A total of 16 mice are sent down a maze, one by one. From previous experience, it is believed that the probability a mouse turns right is .38 a) What is the probability that exactly 8 of these 16 mice turn right? b) What is the probability that 8 or fewer

51. ## counting up method

how do you do the counting up method

asked by julia on November 20, 2012
52. ## math

Even counting numbers less than 18

asked by lisa on October 10, 2013
53. ## algebra

what are the even counting numbers less than 18

asked by Anonymous on October 9, 2013
54. ## math

what are the even counting numbers less than 10

asked by lisa on October 14, 2013
55. ## math

A= (x/7

asked by ash on July 5, 2017
56. ## math

What is counting up method

asked by seeya on January 17, 2010
57. ## Math

In an experiment, the probability of the event E is known to be .4. Also the probability of the event F is .8,and the probability of E∪F is 1. i) Compute the probability of these events: P(E∩F)= P(E-F)= ii) Suppose the experiment is run twice in

asked by Tracy on April 21, 2011
58. ## statistics

24. Suppose there are five traffic lights that you need to pass while driving from your work to school. The probabilities that you will stop for these red lights are: 0 red light with probability 0.05, 1 red light with probability 0.45, 2 red lights with

asked by meri on June 30, 2015
59. ## PreCalculus

How do you find the probability of three events happening at the same time? Please walk me through the steps. If you are in ship and get hit by lightning the probability is 1/100000. And the probability of falling down into the ocean and getting eaten by a

asked by Emma on July 30, 2014
60. ## Math

A mini license plate for a toy car must consist of two numbers followed by a letter. Each number must be a 5, 7 or 9. Each letter must be a C, A or N. Repetition of digits is NOT permitted. Use the counting principle to determine the number of points in

asked by Jen on July 29, 2011
61. ## Statistics

There is a 0.0416 probability that a​ best-of-seven contest will last four​ games, a 0.0804 probability that it will last five​ games, a 0.2132 probability that it will last six​ games, and a 0.6648 probability that it will last seven games. Find

asked by Anony123 on April 24, 2017
62. ## math

what is the difference between doubles plus one and counting on?

asked by sierra on August 27, 2009
63. ## factorial help!!!

i just need help with factorials I assume you know what a factorial is: 1! = 1 2! = 1x2 = 2 3! = 1x2x3 = 6 N! = 1x2x3x...x(N-1)xN They occur often in probability theory. Please ask a more specific question about factorials. I have no idea what else to tell

asked by tiffanie robinson on August 31, 2005
64. ## Probaility

The rates of on time flights for commercial jets are continuously tracked by the US Department of Transportation. Recently, Southwest Air had the best rate of 80% of its flight time on time. A test is conducted by randomly selecting 15 southwest flights

asked by Mary on December 5, 2006
65. ## MATH-SO LOST :(

A mini license plate for a toy car must consist of a number followed by two letters. Each letter must be a C, A or R. Each number must be a 3 or 7. Repetition of letters is permitted. Use the counting principle to determine the number of points in the

asked by Jen on July 27, 2011
66. ## math

how do you explain this questionA mini license plate for a toy car must consist of a letter followed by two numbers. Each letter must be a T, O or Y. Each number must be a 4 or 6. Repetition of digits is permitted. Use the counting principle to determine

asked by kozy on June 6, 2011
67. ## early childhood

1.) the best example of an embedded learning experience is a.) counting from one to 20 just to practice b.) saying the alphabet while a teacher points to the letters c.) counting out napkins for each child at snack time. d.) tracing letters on a worksheet.

asked by sahar mostafa on March 19, 2013
68. ## math

list the set of: counting numbers from 20 to 30

asked by Anonymous on October 23, 2016
69. ## math

i've got a problem the question is what is another name for counting numbers

asked by Amber on August 17, 2009
70. ## math

in the question 4x-(3-x) =7(x-3) =10 why r u not counting 4x3 as -12? israel

asked by israel on June 10, 2011
71. ## Maths

How can you use skip counting to multiply 5 x 6? Explain.

asked by Parimala on August 2, 2013
72. ## Maths

list the set of: counting numbers from 20 to 30

asked by centa on October 23, 2016
73. ## chemistry

How to solve this problem in counting atoms 2 pb(CN)2

asked by bob on December 7, 2015
74. ## maths

Show the jumps of five in counting from one to hundreds.

asked by Anonymous on June 6, 2014
75. ## Statistics

Event A occurs with probability 0.1 and event B with probability 0.5 A) What is the maximum probability that the intersection of A and B can have? B) What is the minimum probability that the intersection of A and B can have? C) If it is know that P(A

asked by Rebekah on September 6, 2014
76. ## statistics

Suppose that each unit of a system is up with probability 2/3 and down with probability 1/3. Different units are independent. For each one of the systems shown below, calculate the probability that the whole system is up (that is, that there exists a path

asked by sam on February 18, 2014
77. ## biology

One rule of probability can be expressed as the following: The probability of two independent events occurring simultaneously is the product of the probability of their occurring separately. If, for example, you had a pair of dice and rolled each die one

asked by liam on November 11, 2009
78. ## biology

One rule of probability can be expressed as the following: The probability of two independent events occurring simultaneously is the product of the probability of their occurring separately. If, for example, you had a pair of dice and rolled each die one

asked by liam on November 11, 2009
79. ## Statistics

Achusband and wife with brown eyes who have 0.75 probability of having children with brown eyes, 0.125 probability of having children with blue eyes, and 0.125 probability of having children with green eyes. (a) What is the probability that their ﬁrst

asked by Neveah on February 6, 2016
80. ## Economics/Statistics

1. Assume that q and z are two random variables that are perfectly positively correlated. q takes the value of 20 with probability 0.5 and the value of zero with probability 0.5, while z takes the value of 10 with probability 0.5 and the value of zero with

asked by Susan on December 6, 2009
81. ## Genetics

Phenylketonuria, a Metabolic disease in humans, is caused by a recessive allele, k. If two heterozygotes marry and plan a family of six children: a)what is the probability that all will be unaffected? b)what is the probability that three will be unaffected

asked by Tommy on September 2, 2011
82. ## math

specify the sets b roster {odd counting numbers less than 11}

asked by bo on March 28, 2009
83. ## 3rd grade math II

I need to write a sentence for the following Reasoning: How can counting by 10's help you multiply by 10's?

asked by Alexis on December 15, 2010
84. ## 3rd grade math

The question reads: Reasoning: How can counting by 10's help you multiply by 10's?

asked by Alexis on December 15, 2010
85. ## math

How many counting numbers between 100 and 1000 have at least one 2 as a digit?

asked by MATH Help on January 30, 2012
86. ## log graphs

when you're graphing a log graph what are is the counting pattern?

asked by URGENT!!!!!!!!!!! on June 17, 2008
87. ## math

Able starts off counting at 13, and counts by 7. What is the 11th number that Able will say?

asked by ayan on April 5, 2013
88. ## Probability -- Help?

Sampling one at a time with replacement from a bag with 8 blue, 7 red, and 5 green. What is the probability of getting at least two red in 3 draws? The book says the probability is 0.2818 but doesn't explain why. Any help???? Unfortunately, the probability

asked by Cheri on December 1, 2006

suppose that al knows that the probability of an investigation is 0.70 how low must the probability of water's completing its research on time be so that the probability of litres being awarded the contract is at least 0.65?

asked by vinoth on December 24, 2012
90. ## Math

A spinner has numbers 1-16 on it. Probability of 6? 1/16 Probability not 6 15/16 Probability even number 8/16 Probability multiple of 3 5/16? Probability not a multiple of 3 11/16?

asked by Jerald on November 28, 2012
91. ## Math

You flip a coin 20 times and get tails 15 times you flip the coin 80 more times.what do you expect to happen to the experimental probability of getting tails as you increase the number of trials a. The experimental probability will get closer to 50% b. The

asked by ghost on May 25, 2017
92. ## 12th grade

one type of probability used everyday is: a)experienced probability b)scientific probability c)frequency of occurence d)none of the above

asked by david on December 16, 2010
93. ## math

Draw a number line counting by 10s for 240

asked by Anonymous on January 4, 2015
94. ## help me in math!

is -5 a real #? rational #? irrational #? whole #? integer? counting (natural) #?

asked by alexis on April 13, 2011
95. ## Math

Use the counting principle to determine the number of different arrangements of bicycles that are possible.

asked by Kate on March 26, 2008
96. ## math

Allison says that every interger is a counting number. is she correct and explain Please help, thank u

asked by Kiki on September 25, 2012
97. ## 3rd grade math

what is the next number in the sequence 1,3,9,27,______ I'm confused on the skip counting they use.

asked by Reid on April 1, 2014
98. ## s.s

What was the debate between North and South over counting slave populations?

asked by christine on December 5, 2008
99. ## Math

What is the smallest counting number n so that 375n is a perfect square?

asked by Kristen on January 23, 2014
100. ## data managment

what are the similarities and differences between organized counting and permutations, with examples?

asked by ella on October 16, 2016