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Calculate expected time or duration for each activity, variance for each activity, and expected duration and variance for path.
The bookstore employee can service 50 students per hour. Find average time in minutes that student will be in bookstore (system)?
Compute point on the graph of given function at which the slope of tangent line is given slope? f(x)=8x^2+2x-8 slope of tangent line= -3.
He also made 25 picture frames and 21 signs. Juan packed the together in cartons of 8. How many cartons will he take to fair?
What distance will be travelled by 99% of trucks in year? Find probability that average distance travelled in one year by fleet of 8 trucks does not exceed 120,000 km?
Determine the probability that, from random sample of 6 Check$mart credit-card holders, all will pay only minimum amount?
According to table, determine the probability that randomly-chosen wafer was produced from die that had particles?
For period from 1918 to present, in random sample of 12 wolves spotted in region, find probability that 9 or more were male?
Tamales contained improperly cooked pork with adults having a 20% chance, and children having a 30% chance, of getting sick. Find probability that more adults than children get sick?
All the remaining cards are put into the third box. Find probability that card drawn at random from third box is a face card?
How many measurements must the scientist make so that chance that his estimate varies by d by more than 0.5 m is at most 0.05?
The probability Service B will reply is 0.6, while probability that service A or B will respond is 0.9. Find the probability that both A and B will respond?
A manager removed 3 pieces of electronic equipment at random from display in electronics store which featured 8 HDTVs, 7 laptops, and 5 Blue-ray Players.
How many of each kind must Kite 'N String make to maximize profit? Find the maximum profit? Which constraint(s) is/are binding?
How many comedies Saundra has? How many mysteries does Saundra has? How many dramas does Saundra has?
A random sample of lifetime of 49 UltraIllum light bulbs has mean of 3,960 hours and standard deviation of 200 hours.
Are any of the playing times considered unusual in sense of the textbook? Describe. Does this vary with your intuition? Describe.
Find the probability that third toss is heads, given that first toss is heads? Are A and B independent? Why or why not?
Determine an equation of the least squares regression line. Illustrate all work; writing the correct equation.
Use a 0.05 significance level to test claim that such injuries and illnesses happen with equal frequency on different days of week.
The claim that proportion of women saying female bosses are harshly critical is higher than proportion of men saying female bosses are harshly critical?
Find the probability that randomly person has BestEver credit score between 500 and 700? Determine 90th percentile of BestEver credit score distribution.
Determine probability that there are sufficient seats for all passengers who show up. How many passengers are expected to show up?
We then put chip back in a box. We repeat this process two more times, making three draws in all from box.
There are 500 students in senior class at certain high school. Find the probability that randomly selected senior is in exactly one of two classes (but not both)?