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Statistics Question Statistics Joint Probability

10/22/13

Joint Probability: Let P(A) = .3, P(B) = .4 and P( A U B ) = .7 a. What is the joint probability of A and B? b. Find the probability of the complement of A.

How would I go about answering these questions? Also, how do you differentiate between solving them as a dependent or an independent event? Let P(A) = .3, P(B) = .4 and P( A ∪ B ) = .7 a.... more

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Statistics Question

10/18/13

You roll a die, flip a coin, and draw a card. What is the probability that:

You roll a die, flip a coin, and draw a card. What is the probability that:You roll a 3, flip a Head, and draw an Ace?

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Statistics Question Empirical Rule

10/18/13

Empirical Rule: Mean is 84 with a standard deviation of 7. Approximately how much is between 63 and 98?

I would like to know how to go about getting the answer to these questions. 1. Empirical Rule: Mean is 84 with a standard deviation of 7. Approximately how much is between 63 and... more

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Statistics Question

09/30/13

A gambler bets $1 on the number "19" 1600 times in roulette. This bet pays 35 to 1. What is the give-or-take on the estimate of his winnings?

a. $184.25b. $96.58c. $230.50d. $84.36e. $23.50

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Statistics Question Microsoft Excel Statistical Method Statastics

09/29/13

ANOVA Excel Worksheet

The following table contains a random sample of 40 women partitioned into three groups:Group 1: ages below 20Group 2: ages 20 through 40Group 3: ages over 40the values in the table are systolic... more

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Statistics Question

09/25/13

Using statistics, find mean and probabilities

Soft Drink Cans The amount of soft drink that goes into a typical 355 ml can varies from can tocan. It is normally distributed with an adjustable mean µ and a fixed standard deviation of 0.4 ml. ... more

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Statistics Question

09/13/13

in a population with a mean of 50, a score of 55 would have a deviation of ?

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Statistics Question Math Statistics Probability

09/03/13

How do I show Tchebysheffs's theorem,

Let a k ≥ 1. show that for any set of n measurements, the fraction included in the interval y¯ − ks to y¯ + ks is at least (1 - 1/k²). hint: s² = 1/(n-1)[ ∑(y - y¯)²] In this expression ,... more

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Statistics Question

06/22/13

What is the joint distribution of X1, X2?

X1, X2 is a random sample from Bernoulli distribution f(x)=px (1-p)(1-x) where x=0,1

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Statistics Question

06/12/13

Using this data, draw some kind of graph and tell the distribution of the graph

Using this data, draw some kind of graph and tell the distribution of the graph I need to have a graph and then know what the graph looks like such as skewed left and right 62 75 86 83 9877 92 96... more

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Statistics Question

06/09/13

Statistics question

published story saying farmers lead other groups in the consumption of alcohol. As evidence, a rehab center located in the rural part of the state treated more farmers than that of any occupational... more

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Statistics Question

06/03/13

What are the components in basic statistics?

Will you please let me know the basic components in statistics?

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Statistics Question

04/11/13

the systolic blood pressures have a normal distribution with a average 120 and a sd 8. the percentage of individuals with a systolic blood pressure above 120 is

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Statistics Question

03/13/13

For the following data, calculate the difference between the means distribution parameters. n1 = 25, n2 = 36, s12 = 50, s22 = 72, M1 = 100, M2 = 105

Please show me the work

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Statistics Question

01/07/13

what type of data collecting method is a census?

anecdotal evidence or survey?

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Statistics Question

12/30/12

I have a math problem. I hardly know where to start. Can you help?

Here it is. Wow..., this is really hard to read for me. How many close friends do you have? Suppose that the number of close friends adults claim to have varies from person to person with mean 9... more

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Statistics Question

12/02/12

a random sample of 15 items from the first po

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Statistics Question

10/23/12

Is it possible to determine the mean of the distribution of 10 scores, but only 9 are given.

With a distribution of 10 scores, nine of them are 3, 5, 9, 1, 9, 2, 0, 3, and 9. The last one is greater than 5 but it is not 9. Is it possible to determine the mean of the distribution?

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Statistics Question

10/16/12

Natation sample mean

what is term Natation Sample mean

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Statistics Question

10/13/12

explain chebyshev's theorm and empirical rule

i'm trying to figure out how to solve a problem. the mean is 50 and the st. deviation is 15. the question is,"what % of the data will fall between 50 and 110? I used the chebyshev's formula (1-1/k... more

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