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A precision drill positioned over a target point will make an acceptable hole if it is within 5 microns of the target. Using the target as the origin of a rectangular system of coordinates, assume that the coordiates (x,y) of the points of contact are values of a pair of a random variables having the circular normal distribution with u1= u2= 0 and o~ =2 what is the probability that the hole will be acceptable?
construct an 80 confidence interval to estimate the population mean when x 125 and s 32 for the following sample
A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighed on a very accurate scale. The results in grams were:
If a class of 30 students is chosen at random from the university population, find the mean and variance of the number of male students.
Suppose that in NY State, 35% of voters are Democrats, 30% are Republicans, and 11% are independent. You are conducting a poll by randomly calling registered voters. In your first four calls, what is the probability that you talk to:
Explain why random samples are preferred to nonrandom samples.
Calculate the expected value and standard deviation of the value.
in a game of change if you purchase one ticket out of the 100 tickets being sold at a cost of 5.00 how much money
a class containing 15 students 5 of them are females. in how many ways can we select a group of 4 male
q1. a portfolio manager was analyzing the price-earnings ratio for this years performance. his boss said thatthe
the number of people living in a hypothetical large canadian city is reported by age groups in the following table.age
a random variable x has a probability density function fx 2x for 0 lt x lt 1.find the difference between 10th
Score for the states eith graders on the examination is more than 260. At alpha equals 0.04 is there enough evidence to support the clim?
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