5,385 Answered Questions for the topic probability
Probability
10/17/20
The probability of everyone getting a new table?
We have 24 students in a classroom each with their own table. We decide to rearrange the seats and we give everyone a random place. What is the chance that no one sits back at his former table?
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Probability Statistics
10/17/20
I need help finding the expected value for this game
A game involves selecting a card from a regular 52-card deck and tossing a coin. The coin is a fair coin and is equally likely to land on heads or tails.
If the card is a face card, and the coin...
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Probability Statistics
10/16/20
Statistics and probability
1. Assume that there are 12 frozen dinners: 5 pasta, 4 chicken, and 3 seafood dinners. The student selects 5 of them.What is the probability that at least 2 of the dinners selected are pasta...
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Probability Statistics
10/16/20
How Do I Fill Out This PDF Table for This Problem?
I need help with this problem for my statistics class.Question: "A theater group holds a fund-raiser. It sells 100 raffle tickets for $7 apiece. Suppose you purchase four tickets. The prize is two...
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10/16/20
Probability questions for discrete mathematics.
1. Let X = {2, 3, 4}. Suppose that m is chosen uniformly at random from X. Then n is chosen uniformly at random from X. Let G be the random variable whose value is gcd(m, n). Let A be the event...
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Probability Statistics
10/16/20
normal distribution and/ or probability distribution
If a person tests positive for Tuberculosis (TB) and starts treatment immediately, it takes on average 6 months (183 days, with a standard deviation of 14 days) of treatment until they are...
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Probability Statistics
10/16/20
A dealer splits a standard 52-card deck of cards into 5 piles. The dealer tells you that one of the piles consists of all the face cards and aces.
Each of the remaining piles contains a single suit (so, one of the piles contains all the hearts with face values 2–10, another pilecontains all the spades with face values 2–10, etc.). The dealer...
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10/16/20
Maria''s phone has a 4-digit passcode, each digit is chosen from the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}.
The phone is designed to allow a passcode to be entered once every 5 seconds. Unfortunately, Maria has lost her memory. To get into the phone, she has to guess the passcode, but she cannot remember...
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10/15/20
Probabilty of matching hand to dealer's hand
Hey, so I have to make this gambling style game for a math project and I need some help finding the probability distribution.The way the game goes is the dealer takes 3 cards from a 52 card deck...
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10/15/20
How do I find P(T)? Please help, this is due tonight!
A box of cookies contains 4 chocolate and 6 butter cookies. Miguel randomly selects a cookie and eats it. Then he randomly selects another cookie and eats it. (How many cookies did he take?)
P(BB)...
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10/14/20
If there is a random arrangement of cars currently occupying four of the six spots, what’s the probability that I will have to parallel park?
Every weekend, I drive into town for contactless curbside pickup at a local restaurant. Across the street from the restaurant are six parking spots, lined up in a row.While I can parallel park,...
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Probability Statistics
10/14/20
People goto Sams Shop randomly and independently of each other at a rate of 15 per day,on (average). It's open from 7am - 5pm and a customer arrives. What's the standard deviation between customers?
Probability Statistics
10/13/20
how do I find probability for this homework problem??
The following table of data obtained from Baseball Alamanac shows hit information for four well-known baseball players. Suppose that one hit from the table is randomly selected.NAME ...
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Probability Statistics
10/13/20
I'm confused on this part of my homework. Any help would be great
A college finds that 10% of students have taken a distance learning class and that 40% of students are part-time students. Of the part-time students, 20% have taken a distance learning class....
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10/13/20
I need help solving this probability homework question
If you could help me that would be amazing. Thanks!Given events J and K:
P(J) = 0.19
P(K ) = 0.37
P(J OR K) = 0.42.
Find P(J AND K ). (Enter an exact number as an integer, fraction, or...
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Probability
10/13/20
Probability of selecting a heart and then selecting a club from a deck
Two cards are selected from a standard deck of 52 playing cards. The first card is not replaced before the second card is selected. Find the probability of selecting a heart and then selecting a...
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10/13/20
How do I find the value that is one standard deviation below the mean?
The following data are the distances between a sample of 20 retail stores and a large distribution center. The distances are in miles.29; 30; 37; 40; 58; 67; 68; 69; 76; 81; 84; 95; 96; 96; 99;...
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Probability
10/13/20
John stands in front of a sugary soft‐drink vending machine.
John stands in front of a sugary soft‐drink vending machine. This machine randomlydispenses one of four different flavored colas. The machine contains exactly two cans of eachflavor. Find the...
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Probability Statistics
10/12/20
what is the probability?
A radar unit is used to measure the speed of cars. Records show that the measures of speed are normally distributed with a mean of 95 km/hr and a standard deviation of 14km/hr. The probability that...
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Probability Statistics
10/12/20
What is the probability of getting delivered.
food delivery service in america has mean delivery time of 55 mins with a standard deviation of 20mins. Assuming that the distribution is normally distributed, then the probability that the food...
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10/12/20
How much will expect to gain/lose?
Ace's Pizza delivers several types of pizza, which is sold for 499 php and cost 300 php to make. The pizza shop has a policy that no charge will be asked if the delivery takes longer than half an...
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10/12/20
Direct reasoning and indirect reasoning in math-2 alberta curriculum
A standard deck of 52 cards consists of 4 suits (hearts, clubs, diamonds and spades). If a student deals 3 cards from standard deck, determine the probability to the nearest hundredth, that at...
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Probability
10/11/20
Not sure how to set up this problem
Wonder Widgets Inc produces Midget Widgets (MW).. Their data shows that 2% of the output is defective. A sample of 25 MWs is taken. (a) What is the probability that exactly two of this sample are...
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Probability Statistics
10/11/20
Probability game
The probability of winning a game is 7/15. Determine the probability, expressed as afraction, of winning exactly 3 games if 5 games are played
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Probability Statistics
10/11/20
Probability, multiple choice
Jean guesses on all 7 questions on her multiple choice quiz. Find the probability if each question has 4 choices.P(exactly 6 correct)P(at most 2 correct)
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