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Research on new juvenile delinquents revealed that 38% of them committed another crime.
a. What is the probability that of the last 100 new juvenile delinquents put on probation, 30 or more will commit another crime?
b. What is the probability that 40 or fewer of the delinquents will commit another crime?
c. What is the probability that between 30 and 40 of the delinquents will commit another crime?
Explain the difference between mutually exclusive and independent events. Can a pair of events be both mutually exclusive and independent? Give examples.
The Dean of Students believes that the costs are greater this semester. What is the test value for this hypothesis?
A sample of 12 measurements has a mean of 24 and a standard deviation of 2.5. Suppose that the sample is enlarged to 14 measurements, by including two additional measurements having a common value of 24 each.
To determine the number of deer in a preserve, a conservationist catches 468 deer and tags them then lets them loose. Later, 680 deer are caught, 170 of them are tagged. How many deer are in the preserve?
Suppose that 450 ft of fencing is used to enclose a corral in the shape of a rectangle with a semicircle whose diameter is a side of the rectangle. (In the figure below, the blue outline represents the fencing.) Find the dimensions of the corral w..
Provide an example of a matrix that can be solved using Gaussian elimination. Show specifically how row operations can be used to solve the matrix.
write 150-200nbspwords that respond to the following scenario with your thoughts ideas and comments.given the following
Electrical wires suspended between two towers form a catenary modeled by the equation y= 20 cosh x/20 where x and y are measured in meters. The towers are 40 meters apart. Find the length of the suspended cable.
At the beginning of an experiment, a scientist has 272 grams of radioactive goo. After 180 minutes, her sample has decayed to 17 grams.
What is the probability that a randomly selected teacher earns more than $525 a week?
At the scene of an accident, police measured a skid mark of 361 feet. About how many miles per hour was the car traveling when the brakes were applied?
Shawn Bixby borrowed $18,200 on a 132-day, 13% note. After 75 days, Shawn paid $3,200 on the note. On day 107, Shawn paid an additional $5,200. Use ordinary interest.
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