5,385 Answered Questions for the topic probability

Probability

05/29/22

Suppose that resting pulse rates among healthy adults are normally distributed with a mean of 78 beats per minute and a standard deviation of 10 beats per minute.
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Probability

05/28/22

Birthday Problem
How many people should gather in a room, so that atleast one person has birthday everyday also in leap year
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Probability

05/26/22

Find Pr(A∩B′) when Pr(A∪B)=0.8, Pr(A)=0.5 and Pr(B)=0.4
Find Pr(A∩B′) when Pr(A∪B)=0.8, Pr(A)=0.5 and Pr(B)=0.4 Find Pr(A′ ∩ B) when Pr(A ∪ B) = 0.76, Pr(A) = 0.31 and Pr(B) = 0.59
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Probability

05/25/22

Geometry probability

A two sided coin is flipped at the same time that a number cube with faces labeled 1-6 is rolled. How many outcomes are possible?
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Probability Algebra 2

05/25/22

Weights of 2-year-old girls are normally distributed with a mean of 25.3 lbs. and a standard deviation of 1.12 lbs. According to this information, what weight would be the 33rd percentile?

Weights of 2-year-old girls are normally distributed with a mean of 25.3 lbs. and a standard deviation of 1.12 lbs. According to this information, what weight would be the 33rd percentile?
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Probability

05/24/22

red or black card game probabilities
I've been working on an assignment, could someone let me know if it's right? These are the probabilities of a game of red or black with cards, with 8 rounds. (I'm a bit unsure about the last... more
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05/23/22

Mr. Santos, a garment store owner, claimed that the brand of sweatpants his customers prefer is Brand A compared to Brand B. He conducted a survey of 100 customers.
Direction: In the following problem, (a) state the null and alternative hypothesis, (b) select and compute the test statistic, (c) determine the critical value and the rejection region, and (d)... more
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05/21/22

 Mr. Santos, a garment store owner, claimed that the brand of sweatpants his customers prefer is Brand A compared to Brand B. He conducted a survey of 100 customers.

Direction: In the following problem, (a) state the null and alternative hypothesis, (b) select and compute the test statistic, (c) determine the critical value and the rejection region, and (d)... more
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05/21/22

Answer the following questions.
A certain "Plantita" wants to test whether some plant species are more salt-tolerant than others. Some key variables she might measure are the following: the amount of salt she must add to the... more
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Probability

05/20/22

you have a bag of 17 marbles four are blue 6 are green 2 are red 5 are yellow what is the probablit of drawing a green marble keeping it then drawing a yellow marble
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Probability Math Statistics Maths

05/20/22

(a) state the null and alternative hypothesis, (b) select and compute the test statistic, (c) determine the critical value and the rejection region, and (d) draw a conclusion.
Direction: In the following problem, (a) state the null and alternative hypothesis, (b) select and compute the test statistic, (c) determine the critical value and the rejection region, and (d)... more
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05/20/22

Construct a scatter plot and identify the trend of data as to form, direction and trend.

Application (Performance Task)Construct a scatter plot on the problems below and identify the trend of the data as to form, direction and trend.1. A doctor collected data on how many hours children... more
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Probability

05/19/22

What is the probability of this happening ?
A cooler contains fourteen bottles of sports drink: 4 lemon lime flavored, 5 orange flavored, and 5 fruit punch flavored. You randomly grab a bottle. Then you return the bottle to the cooler, mix... more
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05/19/22

Solve the following.

Compute the value of the test statistic for each test using the given information.1. Testing Ho: p = 0.48 vs Ha: p <0.48 at a = 0.10, n = 540, p = 0.582. Testing Ho: p = 0.94 vs Ha: p > 0.94... more
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Probability

05/19/22

Which of the following statement is FALSE about the sample space of the specified experiment?

A. Rolling a die once: S = {1,2,3,4,5,6}B. Answering a True or False item: S = {True , False}C. Tossing two fair coins once: S = {HH, HT, TH, TT}D. Drawing a Jack from a standard deck of playing... more
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Probability

05/19/22

Which of the following is an event in rolling a die once?

A. E1 = {1, 4, 7}B. E2 = {2, 3, 5}C. E3 = {0, 2, 4, 6}D. E4 = {1, 4, 9, 16}
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Probability

05/19/22

VERY EASY PROBABILITY QUESTION IN THE DESCRIPTION.

In a bag. there are 3 white balls. 2 brown balls and 4 gray balls. How many possible outcomes when one ball is chosen randomly from the bag?A. 3 B.5 C.7 D.9
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Probability

05/19/22

VERY EASY PROBABILITY QUESTION IN THE DESCRIPTION.

In a bag. there are 3 white balls. 2 brown balls and 4 gray balls. How many possible outcomes when one ball is chosen randomly from the bag?A. 3 B.5 C.7 D.9
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Probability Statistics

05/18/22

Indicated probability

A building has 3 parking stalls in front. Find the different number of ways that two different cars can park in the stall.
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Probability Statistics

05/18/22

Indicated probability

Two dice are rolled. What is the probability that the sum of the two numbers on the dice will be three
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Probability

05/18/22

Suppose you toss 4 coins. What is the probability of getting 0 heads?
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Probability

05/18/22

probability questions
a spinner has five equal sectors red yellow green blue and violet what is the probability of not landing on the green sector
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Probability Math Statistics Maths

05/17/22

(a) state the null and alternative hypothesis, (b) select and compute the test statistic, (c) determine the critical value and the rejection region, and (d) draw a conclusion.
Direction: In the following problem, (a) state the null and alternative hypothesis, (b) select and compute the test statistic, (c) determine the critical value and the rejection region, and (d)... more
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Probability Math

05/16/22

What is the approximate probability that Cody chose to get home from work by bus, given that he arrived home after 7 p.m.?
Suppose that Cody can choose to get home from work by car or bus.  When he chooses to get home by car, he arrives home after 7 p.m. 9 percent of the time. When he chooses to get home by bus, he... more
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Probability

05/16/22

What is the probability that exactly 4 people will be infected by the flu?
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