5,385 Answered Questions for the topic probability

Probability

04/19/22

11% of students speak German. 4% of students speak French and German. If astudent is selected at random, what is the probability that the student speaks French given that he/she speaks German?
11% of students speak German. 4% of students speak French and German. If astudent is selected at random, what is the probability that the student speaks French given that he/she speaks German?
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Probability

04/19/22

Probability and Stats

The proportion of voters who prefer Candidate A is p=0.407. An organization conducts a poll of n=5 voters.Let X represent the number of voters polled who prefer Candidate A. Complete the table... more
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Probability Math

04/19/22

card probability?

A new card game consists of 8 red cards, 7 yellow cards, 6 green cards and 5 blue cards. If you have to draw 8 cards, what is the probability that you would:a) draw 2 of each color?b) draw 3 red... more
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Probability

04/18/22

Probability and statistics

A car dealer is going to give away a new car. Each of 460 contestants has been given a key, and only one of those keys will start the car to be given away. The keys are randomly numbered from 1 to... more
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Probability

04/18/22

Probability and Statistics - uniform and binomial distributions

Say 10% of peanut M&Ms are brown, 10% are yellow, 20% are red, 40% are blue, 10% are orange and 10% are green. You grab 10 peanut M&Ms from an extra-large bag of the candies.Round all... more
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Probability

04/18/22

There are 12 blue, 15 green, and 8 red books on a shelf. Two books are selected randomly. What is the probability of choosing two books of different colors
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Probability Statistics

04/18/22

Suppose a jar contains 8 red marbles and 36 blue marbles. If you reach in the jar and pull out 2 marbles at random at the same time, find the probability that both are red.
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Probability Math Science

04/15/22

Probability Question
Let X be a random variable such that E[X] = 2, E[X^3 ] = 9 and E[(X – 2)^3 ] = 0. What is the Var[X]?
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Probability Math

04/14/22

pizza problems?
In a survey given to 16 students, 7 preferred pepperoni pizza, 5 preferred plain cheese and 4 students didn't have a preference.If three students are selected at random, what is the probability... more
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Probability Math

04/14/22

could you help me with this problem?
You are getting ready to remodel your kitchen and have narrowed down your choices to the following:For the walls, you can choose from teal, tan, blue or navy. For the trim, you can choose white or... more
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Probability

04/14/22

probability of Marble randomly picked
A bag contains three red marbles, two green ones, one pearl blue two yellow and three orange marbles. if you grab at random 5 marbles what is the probability that you have all red ones and the... more
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Probability Statistics

04/14/22

Hypothesis of Interest
Between 2009-2010 all high school classes were taught in person. The mean SAT grades during this period was μ=1100To understand the impact that online classes have on student learning, 16 students... more
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Probability

04/13/22

Quantitative and Reasoning

A fair coin is tossed 5 times. Compute the probability of tossing 5 heads in a row.
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Probability

04/13/22

Interpret Probability
According to a certain airline, flights on a certain route are on time 85% of the time. Suppose 17 flights are randomly selected and the number of on-time flights is recorded. Find and interpret... more
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Probability Math Algebra 2 Algebra

04/12/22

Conditional Probability from a Table
In a class of students, the following data table summarizes how many students have a brother or a sister. What is the probability that a student has a brother given that they have a sister? Has a... more
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Probability Math Algebra 2 Algebra

04/12/22

Conditional Probability from a Table
In a class of students, the following data table summarizes how many students have a brother or a sister. What is the probability that a student has a brother given that they have a sister? Has a... more
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Probability

04/12/22

Probability in Algebra 2 honors
Hannah is playing a virtual reality game in which she must toss a disc to land on the largest triangular section on the board. If the disc is equally likely to land anywhere on the board, what is... more
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Probability

04/12/22

Probability in Algebra 2 honors
Hannah is playing a virtual reality game in which she must toss a disc to land on the largest triangular section on the board. If the disc is equally likely to land anywhere on the board, what is... more
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Probability Math Statistics Maths

04/12/22

Is hypothesis testing an efficient way of solving problems?why? Provide real life experience/example.
Is hypothesis testing an efficient way of solving problems?why?Provide real life experience/example.
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04/12/22

Choose the procedure for estimating the mean difference.
Suppose that a scientist seeks to compare the ability of a new hand sanitizer to eliminate Pseudomonas aeruginosa bacteria against the hand sanitizer currently in use. Assume that the mean number... more
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Probability Mathematics

04/10/22

LOTR Probability Question
In an adventure, Thranduil has five ruby swords, three diamond swords, and two elven swords. From his travel an orc suddenly appeared, he pulls out two swords at random. Find the probability that... more
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Probability Math Sat Math Act Math

04/10/22

Probability question: hitting the target
The probability of an archer to hit the target is 0.85. The archer keeps shooting until he hits the target, but not more than 5 times. What is the probability that he shot not less than 3 times?
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Probability Math Algebra 1 Algebra 2

04/10/22

Two dice are rolled. Determine the probability of the following. Rolling an even number or a number greater than 10.
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Probability Math

04/09/22

Mathematics Probability
Tony had 5 red socks, 3 blue socks, and 2 white socks in a drawer. He pulled out 2 socks at random from the drawer. What is the probability that one sock is blue, and the other is red?
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04/09/22

From a standard deck of cards, what is the probability of choosing .....
a red and then a club with replacement? a diamond, then a heart, then a black without replacement?
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