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All the fourth-graders in a certain elementary school took a standardized test. A total of 85% of the students were found to be proficient in reading, 71% were found to be proficient in mathematics, and 63% were found to be proficient in both reading and mathematics. A student is chosen at random.
What is the probability that the student is proficient in mathematics but not in reading? Round the answer to two decimal places.
Determine if it is possible for you and your friends to all earn an A in this course if the instructor "grades on a curve". Explain your answer. Discuss whether you think this method of grading is fair.
the data for a random sample of eight paired observations are shown in the table belowpair 1population 1population
Use SolverTable to investigate the effects of simultaneous changes in the selling prices of the products. Specifically, see what happens to the total revenue when the selling prices of oak products and the selling prices of pine products are allow..
A consumer group is testing the gas mileage of three different models of cars. Several cars of each model were driven 500 miles and the mileage was recorded as follows.
What should be the value of p so that the probability that the integrated circuit functions is 0.95?
A seminar is given to three levels of managers (highlevel, midlevel, lowlevel).The facilitators believe the evaluations may vary with the audience.
Researchers at a university wish to estimate the effect of class size on course comprehension. An intermediate course in statistics can be taught to classes.
a. Give the numerical value of E(y), the expected milk production of the calf when it reaches maturity.
Ms. Lisa Monnin is the budget director for the New Process Company. She would like to compare the daily travel expenses for the sales staff and the audit staff. She collected the following sample information.
for a particular company the number of sick days used by employees had a mean of 7 and a standard deviation of 2.a. a
a die is tossed 90 times. find the standard errror for the number of sixes
Sketch a scatterplot with an outlier that would inflate the correlation between the two variables. Sketch a scatterplot with an outlier that would deflate the correlation between the two variables.
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