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Using Chebysheff's theorm, you have concluded that at least 72.44% of the 2,924 runners took between 62.4 and 84.6 minutes to complete the 10km race. What was the standard deviation of these 2,924 runners?
Using 1-1/k^2 I can get the value of k correct. But then I struggle with the math to then get the standard deviation value correct. mean-k(sd)=LL doesn't seem to help me here.
a random vector x y has the joint density function fx y 6xy2 0 x 1 0 y 1 0 otherwise. find fxx and fy y. are x and y
questionthe effect of exercise on the amount of lactic acid in the blood of sportsmen was examined in a study. eight
What types of variables are measured using Pearson coefficient, and what types variables are measured with chi square; I am looking for names of variables (e.g., nominal, interval)?
Construct a definition by subclass for the following terms by naming three subclasses of the class the term denotes. Then find a non-synonymous term that these subclasses serve equally well to define.
Explain why fitting a linear model to these data might be misleading.- If you fit a linear model to the data, what do you think a scatterplot of residuals versus predicted HDI will look like?
Construct appropriate control charts and comment on the performance level. What are the chances of meeting a goal of no more than a 10-minute delay?
After six months each pilot's cholesterol level is checked again. At the 0.01 significance level, can we conclude that the program was effective in reducing cholesterol levels?
The number of defective items produced in a week by each of 5 different production lines (called A, B, C, D, and E) is as follows:
A random sample of 200 freshmen entering college shows a mean score of 442. Is there a significance difference?
a piggy bank contains one penny one nickel one dime and one quarter. it is shaken until two coins fall out at random.
deduce that these two random variables are independent
the presence of bacteria in a urine sample bacteriuria is sometimes associated with symptoms of kidney disease in
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