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A Garage door opener has six toggle switches, each with three settings: up, center, and down. How many settings are possible in which two switches are up, two are down, and two are center?
What is the probability that at least 8 of the next 15 errors are due to operator errors? What is the probability that no more than 3/10 failures are due to operators?
question a researcher wishes to estimate the average amount of money that a person spends on lottery tickets per
A regression line for a certain set of data is found to be y = 14 + 9x. The mean of y , or y bar, is 27. A particular data point is (2,40). What is the total variation in this point?
snowfalls occur randomly and independently over the course of winter. the average is one snowfall every 3 days.a what
What size random sample should you take if you want to estimate the annual salary in the population with 99 percent confidence and a maximum margin of error of $250?
Using two-tailed test with α = .05, is there significant difference between two treatment conditions? Calculate r2 to measure percentage of variance accounted for by treatment effect.
deliverable length 4-8 paragraphs inforum topic with all of the recent frauds and corporate scandals similar to merck
Suppose event A and event B are mutually exclusive with the P(A)=12 and P(B)=1/3.Which of the following statements best describes these two events?
question light bulbs are tested to see if they work or n ot. the probability of a bulb working properly is 0.8. 100
11 women and 9 men are the contestant in a competition. If 3 winners are ramdomly selected. what is the probability that they are all men?
Also, assume that X = number among 20 randomly selected coffee purchasers who select a national brand, and that the random variable X follows the binomial distribution.a. What is the probably that at most 15 customers choose a national brand?
Number of days of accrued annual leave. suppose that the mean and variance are 12 and 144, respectively. What is the probability that a sample of size 100 will yield a mean greater than 9?
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