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Six missiles are fired at a certain target. The probability that a missle will hit the target is 75%. What is the probability that of the six missiles fired a) exactly five will hit the target, b) at least three will hit the target, c) all six will hit the target?
to perform a certain type of blood analysis lab technicians must perform two procedures. the first procedure requires
The life expectancy of computer terminals is normally distributed with a mean of 4 years and a standard deviation of 10 months. What is the probability that a randomly selected terminal will last more than 5 years?
Compute average daily rainfall in the week and for weekends. Get the average of weekdays' rainfalls and average of weekend's rainfalls.
A random sample of 100 students who took a statistics exam were asked their score on the exam. The mean score on the test was 50; the standard deviation was 10. The scores are normally distributed.
The engineers hoped to base their decision on the reactions of 50 drivers, but time and budget constraints may force them to cut back to 20. How would this affect the power of the test? Explain.
At 99% confidence, test to determine if there is sufficient evidence to indicate that process 2 takes a significantly longer time to manufacture the Zip drives.
How much money would a Western household have to spend on groceries per year in order to be at the 99th percentile?
answer the following in 50 to 150 words each. provide citations for all the sources you use. what is racism? in what
What was the cost for the 10 percent of employees who incurred the highest dental expense?
The sample sizes are unequal. Research question: Are the mean annual attendance rates the same for employees in these three departments?
A study of injuries to in line skaters used data from the National Electronic Injury Surveillance System, which collects data from a random sample of hospital emergency rooms.
Marital Status. The probability that a randomly chosen 40-year-old woman is divorced is about 0.15. this probability is a long-run proportion based on all the millions of women aged 40.
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