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In a certain college, 33% of the physics majors belong to ethnic minorities. If 10 students are selected at random from the physics majors, that is the probability that no more than 6 belong to an ethnic minority?
assume that as a newspaper reporter you must graph data showing that increased smoking causes an increased risk of lung
a certain number of dollars is placed in each of two envelopes. the amounts differ from one another but you do not know
The following table gives in-state tuition costs (in dollars) for 15 randomly selected colleges taken from a list of the 100 best values in public colleges (source: Kiplinger's Magazine, October 2000).
a researcher is examining preferences among four new flavors of ice cream. a sample of n 80 people is obtained. each
The students of Hugh Logan's math class took the Scholastic Aptitude Test. Their math scores are shown below. Find the mean score
Determine how self confident a person may be. Analysis and Justification. Prepare an analysis of how you developed your instrument.
Use a 0.05 significance level to test the claim that the mean speed of all cars is greater than the posted speed limit of 70 mph. Based on the above situation compute the value of the test statistic.
Your population mean has always been 9 customers per hour. The sample standard deviation is 4. The sample size is 25. The sample mean is 8.
1 a five member committee has to be formed from a special group of 7 republicans and 8democrats.a in how many ways can
The following data (in pounds), which were selected randomly from a normally distrubuted population of values, represent mearsurements of a machine part that is supposed to weigh, on average, 8.3 pounds.
flip a coin 60 times. record the outcome of each of the 60 flips in order from 1 to 60 using the tally sheet
In a simple random sample of 1000 households, 150 households happen to own a barbecue grill. Based on the characteristics of the population, the expected number of grill owners in the sample was 180.
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