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Blood type AB is found in only 3% of the population†. If 205 people are chosen at random, find the probability of the following. (Round your answers to four decimal places.)
(a) 5 or more will have this blood type
(b) between 5 and 10 will have this blood type
Sample of 81 houses was studied and found to have the mean of 1858 KWH. Determine the 95% confidence interval for true mean.
for a lawyer 10 clients come to see her on average every day. the time of talking to each customer follows an
Determine sample size requirements. When the results are available you would like your margin of error to be plus or minus 5% for the satisfaction measure and plus or minus $1.50 for the spending value.
Scores on the ACT test have a mean of 21.1 and a standard deviation of 4.8. which is relatively better: a score of 1840 on he SAT or a score of 26.0 on the ACT test? why?
The probability of his passing english is 0.8, but the probability of his passing both is 0.6. What should be his estimate of the probability of his passing math?
For a continuous random variable x, the probability density function f(x) represents the probability at a given value of x. the area under the curve at x.
an article in the american statistician m. l. r. ernst et al. scatterplots for unordered pairs 50 1996 pp. 260-265
Bivariate data for the quantitative variables x and y are given in the attached. These data are plotted in a scatter plot. Sketch an approximation of at the least-squares regression line for the data.
A market researcher wants to find the 99% Confidence Interval for the average number of hours people spend online each day.
If 200 passengers take this flight, find the binomial and Poisson probability of no platinum flyers (round your answer to 4 decimal places).
Using probability: How can you use probability to improve your chances of winning at a casino. Provide specific examples using concepts learned in this module
On Saturday morning, calls arrive at TicketMaster at a rate of 108 calls per hour. What is the probability of fewer than three calls in a randomly chosen minute?
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