01/26/22

Marco enjoys playing hockey in his spare time. In his past 6 seasons, the number of goals he has scored each season is as follows:
[16,19,17,24,21,17]a) What is the sample standard deviation?
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01/26/22

Brandon works as a statistician for the Toronto Blue Jays, and wants to analyze the relationship between a player’s age and how many strikeouts they accumulate in a season.
He takes a sample of 7 Blue Jays players with age between 25 and 34 and finds there is a linear relationship between their ages and the number of strikeouts they had in the 2015 season. Here are... more
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07/21/20

A bag contains 8 white counters, 3 black counters, and 6 green counters. What is the probability of drawing
(a) a white counter or a green counter?(b) a black counter or a green counter?(c) not a green counter?
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07/21/20

What is the probability that Dee wins?
Suppose Don Gregg & Dee Poset are the only 2 candidates for president. The probability that Don wins is 0.38. What is the probability that Dee wins?
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06/30/20

STATS IN PSYCHOLOGY

Assume your class took a final exam in psychology in which the scores produced a normal curve with a mean score of 80 and a standard deviation of 5. If the student scores within two standard... more
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06/10/20

Probability math
a) P(A or B) = p(A) + p(b)P(A) = 0.04P(B) = 0,025P(A or B) = 0,04 + 0,025 = 0,065b) Still don't know the answer to b. I hope some of you could give me the answer. and the way you came to the answer
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06/04/20

upper limit of the confidence interval
Consider the following recorded sample weights (in pounds) of the employees who just had their annual physical exams: 184.21, 152.08, 131.76, 175.40, and 166.17.  What is the upper limit of the... more
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06/03/20

Probability statistic
In a game of “Chuck a luck” a player bets on one of the numbers 1 to 6. Three dice are then rolled and if the number bet by the player appears i times (where i equals to 1, 2 or 3) the player then... more
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06/03/20

Statistics and Probability
The table summarizes results from 979 pedestrian deaths that were caused by automobile accidents. Pedestrian Deaths Driver Intoxicated? Pedestrian... more
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06/03/20

statistics, events

Hi!In a biathlon competition there are four stations where the competitors stop and shot. At each station there are five boards and the competitors have eight attempts to hit five boards. For every... more
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06/03/20

Lottery ticket expectation of winning
Suppose 100000 tickets are sold on a lottery. Three prizes are at stake; P25000 for the first, P20000 for the second, and P10000 for the third prize. If you buy a lottery ticket, what is your... more
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06/03/20

geometry homework

Ellie has a standard deck of playing cards and chooses a card at random. Event A is the probability that she draws a card that is a diamond. Event B is the probability that she draws a card from a... more
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06/03/20

geometry homework

Given Event A, Event B, and Event C. Event A and Event B, are mutually exclusive. Event A and Event are not mutually exclusive. P(A) = 0.45 P(B) = 0.35 P(C) = 0.25 What is the probability of the... more
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06/01/20

In a luck race, 100 people are gonna throw 5 dice each. If a person throws 3 or more "6", they win. Out of 100 people, what is the probability that 6 people will win?
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06/01/20

Please help out
A financial analyst has found out that,policy holders are four times as likely to file two claims as to file four claims.If the number of claims filed has a Poisson distribution,what is the... more
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06/01/20

Please help out
A random variable X has poisson distribution with mean equal to 0.4.what is the probability that the random variable is greater than Zero?
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06/01/20

Please help me with this question
The mean number of errors due to a bug occurring in a minute is 0.0001.What is the probability that no error will occur in 20 minutes.
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05/31/20

Probability Lottery Question
The Probability of a $1 winner in a particular state lottery is 1 in 8, the probability of a $5 winner is 1 in 100, and the probability of a $25 winner is 1 in 800. a) What is the probability of... more
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05/31/20

You order 10 burritos to go from a Mexican restaurant, 4 with hot peppers, and 6 without. However, the restaurant forgot to label them.

If you pick three burritos at random, find the probability that at least one has hot peppers.
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05/31/20

Expected Value Question
A box contains 4 red and 6 green balls. Two balls are drawn. You receive $10 if both are red and you pay $1 otherwise. What are your expected earnings?
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05/29/20

World organization Random sample
A world organization of academics claims tht the mean IQ score of its members is 112, with a standard deviation of 15. A randomly selected group of 40 members of this organization is tested, and... more
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05/28/20

Probability Dice Question
Alice is playing a game in which she will roll 4 6-sided dice at the same time. She gets 5 points for each die that shows an even result. Let x represent the total number of points awarded on any... more
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05/28/20

Statistics and Probability
A math teacher wants to know whether the true average time of his students who do a Math test is 98 minutes. A random sample of 18 students have an average of 98.2 minutes with a standard deviation... more
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05/28/20

Statistics and probability
It is known that the average height of all athletes playing for a certain private school is 181.42 centimeters with a standard deviation of 11.54 centimeters. If 21 players are selected at random,... more
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05/27/20

Answer Choices: 1/64 7/64 3/16 13/64
In a game a player is a biased tetrahedron for faced die. The probability of each possible scores shown below find the probability of a total score of six after two rolls. Score: 1 , 2 , 3 ,... more
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