04/06/16

One-sample or two-sample t-test for testing for significant chance between percentages

I've located 15,000 random points within a study area and have classified the land cover for each point by overlaying the points on an aerial image. I've classified the same 15,300 points twice... more

NOrmal distribution question: Stastics - 2

Suppose a study finds that the wing lengths of houseflies are normally distributed with a mean of 4.55mm and a standard deviation of about 0.392mm. What is the probability that a randomly selected... more

04/02/16

I'm having trouble with this problem : integral e^(x+e^x)dx

How do I do this. Is the answer e^(e^x)?

I need to know how to use the Probability binomial table for this question

I'm dealing with a probability that states: I have drawn nine cards, what is the probability A.)  four or more cards will be black.  B.)  2 or 3 cards will be black.  C.)  Zero, one or two cards... more

Finding the probability using the central limit theorem

QUESTION:   Assume 37% of adults take their favorite color is blue. In a sample of 36 randomly selected adults, find the estimated probability that more than 20 adults take their favorite color... more

Statistics question: A random sample of 40 statistics students had an average test grade of 81.5

A random sample of 40 statistics students had an average test grade of 81.5 and a standard deviation of 10.2. Construct the confidence interval for the population mean, μ if c = 0.90.   The... more

03/28/16

find the value za/2 that corresponds to a confidence level 98.22%

I need it asap

What is the best predicted value for the response variable

What is the best predicted value for the response variable if there is no evidence of significant correlation in a sample?

Probability statistics and two tailed test

A tomato farmer with a very large farm of approximately 2200 acres had heard about a new type of rather expensive fertilizer which would supposedly significantly increase his production. The frugal... more

Suppose 34 cars start at a car race. In how many ways can the top 3 cars finish the? race?

This question has to deal with probablity stats. 

03/20/16

The bass in Clear Lake have weights that are normally distributed with a mean of 2.4 pounds and a standard deviation of 0.8 pounds.

Determine the weights that delineate the middle 95% of the bass in Clear Lake. Enter the interval endpoints below in (f) and (g).(f) The left endpoint of the interval isRound your answer to the 2nd... more

03/18/16

probability,(If E C F, then F^c C E^c) Q2 prove that P(EF^c) = P(E)-P(EF)

this a probability question.it is from my school math question

03/14/16

If X ~ Binomial(n=50, p=0.02), what is the expected value of exp(1.8X)? Note: "exp" is the exponential function.

If X ~ Binomial(n=50, p=0.02), what is the expected value of exp(1.8X)? Note: "exp" is the exponential function.

12/16/15

Convergence and Random Variables

With the Sample space being [0,1], suppose we are looking at a sequence of random variables Xn defined by Xωn = ωn . How can we prove that Xn converges to 0 in probability? And also what is its... more

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