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A coin is biased so that when flipped it lands heads 75% of the time and lands tails 25% of the time. Flip this coin 8 times. What is the probability. (hint:binomial probability)
a) The coin lands tails 3 times?
b) The coin lands tails at least once?
c) If you flipped the coin 1000 times, what is the expected number of tails
when running a non-parametric test on spss with a small sample size which test statistic will not provide the most
1.an experiment was conducted to examine the yield of six different types of alfalfa. they were planted in four
An urn contains w white chips, b black chips, and r red chips. The chips are drawn out at random, one at a time, with replacement. What is the probability that a white appears before a red?
six people suffering from weight problems are put on a year-long exercise regimen and their weights before and
Survey to determine what proportion of new car buyers continue to have their car serviced at the dealership after warranty ends. Estimates 30% of customer do so.
A random sample of 225 fathers from Littleton, yielded 97 who did not help with child care. Using a .05 level of significance test the claim that the proportion is at least 34%.
A sample of 10 electronic tubes produced by a company showed a mean lifetime of 1200 hours and a standard deviation of 100 hours. estimate the mean and the standard deviation of the population of all such tubes produced by the company?
according to the u.s. bureau of the census 75 of adults regularly drank alcohol in 1985. an investigator predicts that
a web based software company is interested in estimating the proportion of individuals who use the firefox browser. in
What linear transformation will change sixth grade scores x into new scores xnew= a+bx that have the desired mean and standard deviation?
The following data represents the pulse rates of ten randomly selected females after stepping up and down on a 6-inch platform for 3 minutes. Pulse is measured in beats per minute. Compute the sample mean pulse.
what results in your departments seem to be correlated or related to other activities? how could you verify this?
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