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A student takes a ten-question true-false quiz, but did not study and randomly guesses each answer. Find the probability that the student passes the quiz with a grade of at least 50% of the questions correct.
the demand for a spare part is three per day according to a poisson distribution. the parts can be obtained from a tool
Make a histogram showing the probabilties of r = 0, 1, 2, 3, 4, 5, 6, 7 or 8 defective syringes in a random sample of 8 syringes.
1. IA Credit Card Company wants to evaluate the usage of their card. They randomly selected 16 credit card holders and found that the mean amount they charged in the past twelve months was $2017, while the standard deviation was $867.
Multiple choice question based on multiple regression - The t value obtained from the table to test an individual parameter at the 5% level
A recent poll of 700 people who work indoors found that 278 smoke. If the researchers want to be 98% confident of their results to within 3.5 percentage points, how large a sample is necessary?
adult females have an overhead reach distance mean of 200.5 cm with standard deviation of 8.6 cm. assume the reach
A flat-bottomed hole 6 mm in diameter is drilled to a depth of 24 mm in a diffuse, gray material having an emissivity of 0.8 and a uniform temperature of 1000 K. (a) Determine the radiant power leaving the opening of the cavity.
a real estate agent has 12 properties that she shows. she feels that there is a 40 chance of selling any one property
when a certain manufacturing process is correctly adjusted the length of a machine part produced is a random variable
for each of the variables below state what level of measurement it is and is it discrete or continuousexample height-ir
Suppose a recent poll of 1,000 people sets forth that 51% of Americans support the U.S. government's "War on Drugs." This poll is shown to have a margin of error of 2%.
an investor wants to compare the risks associated with two different stocks. one way to measure the risk of a given
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