5,341 Answered Questions for the topic probability

Probability Math Algebra 2

09/10/20

Probability with dice question

Q: Find the probability of rolling 2 odd numbers or a sum of 10 when a pair of dice is rolled.I have no idea how to solve/start this so any help is appreciated!
Probability

09/09/20

Probability of winning a week

I am in an NFL Pickem League. I am 1 of 31 participants. Assuming we all have an equal shot at picking the games correctly what is the probability that I will win at least 1 week out of the 17... more
Probability

09/08/20

A question about normal distribution and how to get a percentage

The life of a fully-charged cell phone battery is normally distributed with a mean of 14 hours with a standard deviation of 1 hour. What is the probability that a battery lasts at least 13 hours?
Probability

09/08/20

Statistics and Probability

Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.572.57 and a standard deviation of 0.430.43. Using the empirical rule,... more
Probability

09/07/20

Find the probability of the event of the​ date's being each of the following.

A date in the month of June is chosen at random. Find the probability of the event of the​ date's being each of the following.a.June10 ,b.June31, c. Before June 24
Probability

09/07/20

What is the probability that an employee chosen at random is a​ secretary, given that the person is a male​?

There are 48 employees in a certain firm. We know that 36 of these employees are​ male, 6 of these males are​ secretaries, and 12 secretaries are employed by the firm.
Probability

09/07/20

Find the probability the student selects the correct answer on all of the questions.

Each question of a​ 5-question multiple choice exam has 4 possible answers. Suppose a student picks an answer at random for each question.
Probability

09/07/20

What’s the probability that the ball isn’t Brand B?

A total of 15 basketballs, including 6 brand A, 5 brand B, and 4 other brand-name balls are on a basketball court. Barry closes his eyes and arbitrarily picks up a ball from the court. What’s the... more
Probability

09/07/20

A bag A contains 4 red and 6 black marbles .

A bag A contains 4 red and 6 black marbles . Another bag B contains 6 red and 4 black marbles . A marble is drawn from bag A and put into bag B ( without seeing its color ) . Now from bag B , a... more
Probability

09/07/20

If one student is chosen from the school, what’s the probability of a freshman being chosen?

Sentinel High School was found to have the number of students listed below.Freshman-455sophomore-450junior-504Senior-591
Probability

09/06/20

What is the probability that all 4 selected are men​?

executive committee consists of 12 ​members: 5 men and 7 women. 4 members are selected at random to attend a meeting in Hawaii. The names are drawn from a hat.
Probability

09/06/20

Given Normal Distribution and probability, find mean

If x is normally distributed with mean 𝜇 and standard deviation 𝜎 = 4 and given that the probability that x is less than 32 is 0.0228, find the value of 𝜇.
Probability

09/05/20

a probability question

say we are having a random drawing and given the following conditions:the possibility of the drawn number greater than 50 is 20% the possibility of the drawn number smaller than -50 is 15%now what... more
Probability Fractions Numbers Percents

09/03/20

Big Ideas Online 10.5

You randomly choose one of the tiles. Without replacing the first tile, you choose a second tile. What is the probability of the compound event? Write your answer as a fraction or percent rounded... more
Probability Math Statistics

09/03/20

HELP!!!! How many games of War would you expect to play until you had a game that lasted just 26 turns with no mini “Wars,” like the girl claimed?

A girl claimed that she once won a game of War that lasted exactly 26 turns.War is a two-player card game in which a standard deck of cards is first shuffled and then divided into two piles with 26... more
Probability

08/30/20

Probability Question

(Seating arrangements.) In how many ways can 8 people be seated in a Round table if (a) there are no restrictions on the seating arrangement? (b) persons A and B must sit next to each other? (c)... more
Probability Statistics

08/29/20

Construct a probability mass function of all possible outcomes and find the expected amount that the gambler will get.

In a distant past where gambling is still allowed, a gambling King Pin (who is really good in math), placed a very tricky game. Given one deck of cards, a gambler (who is not good in math) is... more

08/26/20

grade 12 data management

A PIN number for a bank card consists of 4-6 digits, with no restrictions. How many such PIN numbers are possible? (Repetition is allowed and 0 is allowed in first position)~Avery and Bradley work... more
Probability Data Management

08/25/20

Probabilty Data Managment questions

1. A family of 7 are to take a photograph.a) How many arrangements are possible if the triplets (Jack, Bob, Don) are side by sideb) How many arrangements are possible if the Parents (Aex and Molly)... more

08/25/20

probability question

The results for a university entrance exam are normally distributed with µ=48 and σ=9. What is the probability that an exam chosen at random will have a score greater than 63, but less than... more
Probability Math Statistics

08/25/20

grade 12 data management questions

A family of 7 are to take a photograph. a)      How many arrangements are possible if the triplets (Jack, Bob, Don) are side by side    b)     How many arrangements are possible if the... more

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