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Probability of Events
Page 4
Questions (292)
suppose the probability is 0.30 that a student taking an exam did not review. what is the probability,that among 6 students
1 answer
asked by
anonymous
410 views
An urn contains n > 0 white balls and m > 0 black balls. Consider the experiment where two balls are drawn without replacement.
1 answer
asked by
Anonymous
496 views
An unknown number of slips of paper, each with the letter C written on them, are added to the bag. After this, it is known that
1 answer
asked by
jordan
388 views
A store owner decides to put a coupon in the Sunday newspaper. The advertising firm she works believes that at least 20% but no
1 answer
asked by
ty
451 views
Five different written driving tests are administered by the Motor Vehicle Department. One of these five tests is selected at
2 answers
asked by
Lorena
733 views
From a deck of 52 cards, 7 are drawn randomly without replacement. Let X and Y be the number of hearts and spades respectively .
1 answer
asked by
Jenna
901 views
A manufacturer of liquid crystal displays (LCDs) is studying their production lines. The probability of sampling a defective LCD
3 answers
asked anonymously
60 views
It is known that about 20% of car insurance policies include emergency road service. Suppose we randomly select 10 car insurance
3 answers
asked by
Anonymous
392 views
in testing a new drug. researchers found that 20% of all patients using it will have a mild side effect. a random sample of 14
1 answer
asked by
mary- please check calculations.
475 views
As Frank drives to work he has to pass through three lights. The probability that any light is green is 39%. Estimate the
4 answers
asked by
Lisa
545 views
Four hundred people apply for three jobs. 130 of the applicants are women.
(a) If three persons are selected at random, what is
7 answers
asked by
kay
797 views
Suppose a family has 5 children. Suppose the probability of having a girl is 1/2. find the probability that the family has
4 answers
asked by
Maria
1,615 views
It is 21% likely that any particular person has seen the latest box-office hit. If you
are going to a party where you will see 10
1 answer
asked by
sara
297 views
IF P(A)=40%,P(A OR B)=60%,P(A AND B)=30% WHAT IS P(B)
1 answer
asked by
Christina
298 views
2:Hoyda has 15 percent of the car market. If a random sample of 20 auto mobiles is conducted what is the probabilitity that (a)
3 answers
asked by
Samir
407 views
Please help..
Find the probability of getting 2 hearts if the cards are drawn from a regular deck and the first card is not
1 answer
asked by
Mary
397 views
Bowl one contains 3 black and 2 white balls. Bowl two contains 4 black and 5 white balls.
Experiment: A ball is randomly selected
2 answers
asked by
Aubrey
833 views
the 64 people who answered "yes" to a question, 6 were male. Of the 70 people that answered "no" to the question, 8 were male.
4 answers
asked by
Help
4,079 views
Luis draws 1 card from a deck, 39 times. Predict how many times he draws an ace.
John and O'Neal are playing a board game in
4 answers
asked by
Anonymous
2,365 views
Please help with math!!!!!?
1. A bag contains 9 tiles numbered 1 to 9. P(4) = (1 point) . experimental; the result is found by
4 answers
asked by
Chico
1,880 views
Assume that about 45% of all U.S. adults try to pad their insurance claims. Suppose that you are the director of an insurance
3 answers
asked by
Jacob
1,873 views
A bag consists of 4 different colored marbles.
The probability of drawing each is as follows: P (Blue)=. 4 P (Red)= .2 P
4 answers
asked by
Anonymous
1,614 views
Suppose that the genders of the three children of a family are soon to be revealed. An outcome is represented by a string of the
4 answers
asked by
Cameron
1,433 views
Sarah rolls a die twice. What is the probability that she rolls a 3 and then an even number?
5 answers
asked by
Anonymous
1,386 views
Suppose 30% of the restaurants in a certain part of a town are in violation of the health code. A health inspector randomly
3 answers
asked by
Bersy
1,393 views
Giving a test to a group of students, the grades and gender are summarized below
A B C Total Male 6 5 8 19 Female 11 13 19 43
2 answers
asked by
ess
1,302 views
You roll a red number cube and a blue number cube. Let A be the event "at least one number cube shows a 6"
a) Find P(A) by
4 answers
asked by
kms
1,281 views
A jar contains 5 red marbles and 8 white marbles.
Event A = drawing a white marble on the first draw Event B = drawing a red
2 answers
asked by
j
1,185 views
It is equally probable that the pointer on the spinner shown will land on any one of the eight regions, numbered 1 through 8. If
1 answer
asked anonymously
40 views
When someone buys a ticket for an airline flight there is a 0.0995 probability that the person will not show up for the flight
1 answer
asked by
meagan
1,119 views
john and james are among 30 students who have applied for a trip to boy's state. two students from the group will be selected at
2 answers
asked by
lizette
1,060 views
. In testing a new drug, researchers found that 20% of all patients using it will have a mild side effect. A random sample of 15
2 answers
asked by
mom
1,024 views
A spinner with three equal spaces (labeled A,B, and C) is spun. If the spinner lands on A or C a coin is flipped. If the spinner
2 answers
asked by
Jennyy
1,045 views
Somebody please solve this
A bag contains 5 red balls 4 blue balls and m green balls.Two balls are drawn at random from the
3 answers
asked by
Nikhat zaka
1,040 views
Following are three sets of letters. Draw one letter from Set 1 and place it in Set 2. Then draw one
letter from Set 2 and place
2 answers
asked by
Tasha
1,029 views
35% of North Americans do not think that college education is a contributory factor to economic success. A random sample of
3 answers
asked by
Oliwia
979 views
It was noticed that some cars have license plates with 3 letters followed by three numbers while other license plates have 3
1 answer
asked by
eric
991 views
Thirty-three percent of workers in a city are college graduates. If you randomly select 20 workers...
(A) what is the probability
2 answers
asked by
Abby
974 views
Free Throw Freddie is an 80% free throw shooter. At the end of practice he shoots until he makes 10 shots.
a) What is the
1 answer
asked by
Zach
934 views
How do I do these?
1.A number cube is rolled 120 times. The number 4 comes up 47 times. What is the experimental probability of
4 answers
asked by
Reeses
931 views
A box contains 19 red marbles and 19 green marbles.
Sampling at random from the box five times with replacement, you have drawn a
2 answers
asked by
lucy
937 views
the roller coaster has two seats in each of 12 rows. Riders are assigned to seats in the order they arrive. if you ride this
2 answers
asked by
jasmine
930 views
at a local restaurant 45% of the customers order spaghetti. Estimate the probability that 6 of the next 10 customers will order
2 answers
asked by
Tammy
900 views
A sales force has 10 men and 10 women. A production unit of 7 people is set up at random. What is the probality that it will
1 answer
asked by
Ruth
887 views
Suppose 30% of the restaurants in a certain part of a town are in violation of the health code. A health inspector randomly
1 answer
asked by
Bersy
889 views
According to a recent survey, 65% of all customers will return to the same grocery store. Suppose 11 customers are selected at
1 answer
asked by
Kim
837 views
By picking a natural number randomly up-to 100.find the probability of the number being a perfect cube?
5 answers
asked by
Anonymous
803 views
Four percent of DVD players manufactured by an electronics company are defective. Suppose six DVD players are randomly selected
2 answers
asked by
rita
1,276 views
A twelve-sided die with sides labeled 1 through 12 will be rolled once. Each number is equally likely to be rolled.
What is the
1 answer
asked by
naww,
50 views
1. Nine students ask to visit a college admissions counselor. Each scheduled visit includes one student. In how many ways can
10 answers
asked by
|-/
1,025 views
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Parent Categories (31)
Basic Probability
Calculating Probability
Coin Toss and Number Cube
Combinations and Counting
Combinations and Permutations
Combinatorics
Complementary events
Conditional probability
Counting and Combinatorics
Counting and Probability
Expectation and Variance
Experimental and Theoretical Probability
Experimental Probability
Independent Events
Mathematics/Probability
Number cube probability
Number Cube/Spinner
Probabilities
Probability
Probability and Combinatorics
Probability and Counting Rules
Probability and Statistics
Probability Calculation
Probability Calculations
Probability distributions
Probability Interpretations
Probability Problems
Probability Theory
Simple Probability
Spinner and Coin
Tree Diagrams