No balls will be lost in an 18-hole round?               5 or fewer will be lost in an 18-hole round?          2 or fewer will be lost in a 9-hole round?               3 or fewer will be lost in a 36-hole round?

A manufacturer of window frames knows from long experience that 5% of the production will have some type of minor defect that will require an adjustment. What is the probability that in a sample of 20 window frames at most two will need adjustment?

5) 74% of freshmen entering public high schools in 2006 graduated with their class in 2010. A random sample of 81 freshmen is selected. Find the probability that the proportion of students who graduated is greater than 0.742.

It is known that for a laboratory computing system the number of system failures during a month has a Pois- son distribution with a mean of 0.8. The system has just failed. Find the probability that at least 2 months will elapse before a further failure.

66% of kids are worried about going back to school. In a random sample of 75 kids, what is the probability that 55 or more kids are worried about going back to school? Assume independence between variables.

The arrival of patients in a hospital follows the Poisson process at a rate of 8 people/hour.a. Find the probability that 5 patients present in the first hourb. What is the probability that the time between arrivals of the 4th and 5th patients is more than 1/2 hour?c. What is the probability that the arrival time of the second patient is more than 1 hour?What is the mean and variance of time until the arrival of the 8th patient?

2% adults favor the use of unmammed drones by police agenices.  Twelve U.S. adults are radomly selected.  Find the probability that the number of U.S. adults who favor the use of unmanned drones by police agenicies is (a) exactly three, (b) at least four, (c) less than eight.

Jaylen surveys 85 students at random to determine the proportion of students who have attended Mt. San Jacinto College for more than two years. Suppose that, in reality, 32% of students have attended for more than two years. How are the collection of all sample proportions of samples of size 85 distributed? N(__,__) 2. What is the probability that fewer than 21% of students in Jaylen's sample have been enrolled for more than two years? List the z-scores needed to calculate the result. If there is more than one z-score, separate the values with a comma.   There is a ___ chance that fewer than 21% of students in Jaylen's sample have been enrolled for more than two years. What is the probability that more than 41% of students in Jaylen's sample have been enrolled for more than two years? List the z-scores needed to calculate the result. If there is more than one z-score, separate the values with a comma. There is a ___ chance that more than 41% of students…

A factory produces computer chips with a 12% defect rate. In a batch of 1o computer chips. What is the probability that exactly 4 are defective?

Data collected at elementary schools in Los Angeles County, CA suggest that each year roughly 25% of students miss exactly one day of school, 15% miss 2 days, and 28% miss 3 or more days due to sickness. a. What is the probability that a student chosen at random does not miss any days of school due to sickness this year? b. What is the probability that a student chosen at random misses no more than one day?