5,395 Answered Questions for the topic probability

Probability

05/04/22

A bag has 9 red marbles, 6 blue marbles, and 5 yellow marbles. What is the probability of pulling a blue marble from the bag?

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Probability

05/04/22

The question is in the description.
There are cards in a box. Fifteen of these cards are red, the others are blue, and the rests are white cards. If the probability of drawing a blue card is 0.125 and the probability of drawing a... more
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Probability

05/04/22

There are blue, red, and green marbles in a jar. There are 7 blue marbles in the jar. The probability of getting a blue marble is 1/6 and the probability of green is 5/21.

a. How many marbles are there in the jar?b. How many green marbles are there in the jar? c. How many red marbles are there in the jar?
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Probability

05/04/22

There are red, blue, and black ball pens in a jar. There are 6 red ball pens. The probability of getting a red ball pen is 22.22% while the probability of getting a black ball pen is 40.74%.
a. How many ball pens are there in the jar?b. How many are black pens in the jar?c. How many are blue pens in the jar?
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Probability Math

05/03/22

Probability Math

You roll a 6-sided die. What is P(greater than 4 or factor of 35)?
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Probability Math

05/03/22

Probability Math

You roll a 6-sided die. What is P(greater than 4 or factor of 35)?
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Probability Math Statistics

05/02/22

The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 47 ounces and a standard deviation of 8 ounces.
The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 47 ounces and a standard deviation of 8 ounces.Use the Empirical Rule to... more
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Probability Math Statistics

05/02/22

Company XYZ knows that replacement times for the quartz time pieces it produces are normally distributed with a mean of 12.5 years and a standard deviation of 0.6 years.
Company XYZ knows that replacement times for the quartz time pieces it produces are normally distributed with a mean of 12.5 years and a standard deviation of 0.6 years.(a) Find the probability... more
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Probability

04/29/22

Construct a 95% confidence interval for the population mean given the following
Construct a 95% confidence interval for the population mean given the following: sample mean = 16, population standard deviation = 1.5 and sample size = 49.
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Probability

04/29/22

probability of at least one secretary absent, at least one secretary comes to work and only one comes to work
A businessman has two secretaries. The probability that the one hired most recently will be absent on any given day is 0.08 and the probability that the other secretary will be absent on any given... more
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Probability Geometry

04/28/22

there is a six sided dice rolled 40 times what is the expiremental and theoretical probability of rolling a 6, 1 or 6, no more then 4, greater then 2.
number of dice frequency1            22            103             54             45            76            12
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Probability Math Statistics Maths

04/28/22

BBBASICSTAT8 6.2.501.XP
In the binomial probability distribution, let the number of trials be n = 3, and let the probability of success be p = 0.4012. Use a calculator to compute the following.(a) The probability... more
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Probability Math Statistics Maths

04/28/22

BBBASICSTAT8 6.2.018
The one-time fling! Have you ever purchased an article of clothing (dress, sports jacket, etc.), worn the item once to a party, and then returned the purchase? This is called a one-time fling.... more
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Probability Math Statistics Maths

04/28/22

BBBASICSTAT8 6.2.019.MI
Sociologists say that 95% of married women claim that their husband's mother is the biggest bone of contention in their marriages (sex and money are lower-rated areas of contention). Suppose... more
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Probability Statistics

04/27/22

I need to know if the answer to this is 1, 2, 3, or 4
Mel has a bag containing white and yellow marbles.Mel randomly selects one marble from the bag,records the result, and returns the marble to the bag.The results of the first 65 selections are:A... more
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Probability Statistics

04/27/22

I need to know if the answer to this is 1, 2, 3, or 4
Mel has a bag containing white and yellow marbles.Mel randomly selects one marble from the bag,records the result, and returns the marble to the bag.The results of the first 65 selections are:A... more
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Probability

04/26/22

Probability of Having One Person in Your Class
If there are 2,945 people at a school and there are 6 periods with 35 people in each class, what is the probability of one specific person person being in my class?
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Probability Statistics Normal Curve

04/25/22

find the area of z=1.31 and sketch
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04/24/22

Please help me write the result of correlation coefficient of the research paper
https://drive.google.com/file/d/1_cs2AStcvpu4ZQaF9KramI4G45Qv3tr2/view?usp=sharing
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Probability

04/24/22

CONDITIONAL PROBABILITY
Rene and Chris went to a grocery store to buy drinks. They chose from 10 different brands of juice drinks, 6 different brands of carbonated drinks, and 3 different brands of mineral water. What is... more
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Probability

04/24/22

CONDITIONAL PROBABILITY/ MUTUALLY EXCLUSIVE EVENTS
The number of male and female students in section A whose favorite milk tea flavor is either chocolate or cookies and cream is shown below:Chocolate:Male: 8Female: 12Total: 20Cookies and... more
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Probability Math Statistics Maths

04/24/22

Show your answers by following the 5 steps of testing hypothesis.

Research suggests that most people need at least 7 hours of sleep each night in order to function well the next day. Some research suggests that lack of sleep can adversely affect health, memory,... more
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04/22/22

Show your answer by following the 5 steps in testing hypothesis.

Research suggests that most people need at least 7 hours of sleep each night in order to function well the next day. Some research suggests that lack of sleep can adversely affect health, memory,... more
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Probability Statistics

04/22/22

How many 5-letter words contain two vowels and three consonants?
In this question, words are sequences of letters from the English alphabet, vowels are the letters a, e, i, o, and u, and all the other letters are consonants. (a) How many 5-letter words contain... more
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Probability

04/22/22

Please help me.
The mean weight of 5-year-old children is 39.5 pounds and standard deviation is 3.2 pounds if a sample of 52 5-year-old children is selected find the probability that the mean of the sample will be... more
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