Every Monday, Ken's boss at the bakery randomly decides whether him, his coworker Tom, or his other coworker Ash cleans the bathrooms at
the end of the night. Ken wants to use a fair spinner with even sections
labeled 1 through 6 to simulate the results over the next 4 weeks. Select
all the possible ways of assigning numbers that are fair.

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?

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Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.