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1. if the possible values for x are 1, 2, 3, 4, 5 with probabilities .2, .1, .1, .5, .1, respectively, what are the population mean, variance and standard deviation?
2. If the possible values for x are 1, 2, 3 with probabilities .2, .6 and .2, respectively, what is the mean and standard deviation?
Explain why this would be described as a Prisoner's Dilemma game. Explain the probable outcome of this game.
A doctoral student is designing a research study. She is hoping that the results of the study are statistically significant. What type of p-value would she want to obtain? Select one of the following.
The value of the standardized test statistic
According to Chebyshev's theorem, proportion of values from data set that is further than 2 standard deviations from the mean is at most?
the probability that any given person is allergic to a certain drug is .03. what is the probability that none of three
poor milhouse is hopelessly in love with lisa. unfortunately for milhouse lisa does not feel the same way. however
A researcher hypothesizes that there will be a significant change in a student's fear of statistics following participation in an intervention designed to increase students' confidence in their ability to successfully complete a statistical course..
Compute the effect size for each of the following average SAT math scores. Remember SAT math is standardized such that u= 500 and standard deviation =100.
Choose an American driver at random and let the random variable X be the number of speeding tickets the driver has received in the last two years. The discrete probability distribution of X is shown.
nj state partol would like to know if the mean speed that drivers drive in i-80 is faster than i-280. they gather
Does the article identify the W's?- Discuss whether the display is appropriate for the data.- Discuss what the display reveals about the variable and its distribution.
A multicenter clinical trial involving 17,000 patients suspected of having acute myocardial infarction was conducted. The vascular death rate after 5 weeks was compared in patients receiving aspirin versus those not receiving aspirin
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