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In given problem , what is the probability of observing a value greater than or equal to 3?
ProblemIf the possible values for x are 2, 3, 4, 5, and the corresponding values for p(x) are .2, .3, .4, .1, respectively, what is the probability of observing a value less than or equal to 3.4?
Suppose the probability of suffering a side effect from certain flu vaccine is 0.005. If 1000 persons are inoculated, find the approximate probability that: At most 2 persons suffer.
researchers are testing the effectiveness of a new smoking cessation program. at the close of the program the mean
Determine a 95% confidence interval for the difference in the mean reductions in blood pressure, assuming that the measurements are normally distributed with equal variances.
A scientist studying babies born prematurely would like to obtain an estimate for the mean birth weight, U(mean) , of babies born during the 24th week of the gestation period.
the mean and standard deviation on a calculus mid term are 55 and 16 points while they are 65 and 22 on the final. if a
1.a researcher wishes to compare the effect of two stepping heights low and high on heartrate in a step-aerobics
The following frequency table lists the sales of an item and the number of times it has occurred. It was obtained from historical records.
us airways conducted a number of studies that indicateda substantial savings could be obtained by encouraging
let x be a continuous distribution with probability density function fx2 x32 if xgt -2 and fx0 otherwiselet yx2.
Wwith a standard deviation of 1.7 grams. Assuming the distribution of weights is normally distributed, 4% of whooping crane eggs weigh less than how many grams?
Find the probability that at least one subject experiences headaches. Is it unusual to have at least one of six subjects experience headaches?
1st a confidence interval is constructed without utilizing the finite population correction factor.
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