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In a multiple choice quiz there are 10 questions. Each question has 6 possible answers. Supposing that the student guesses at each of the question:
a. Find the probability that the student answers 7 questions correctly.
b. Find the probability that the student passes the test (i.e. gets at least 50%)
c. How many questions can the student expect to answer correctly?
It was found that the correlation is about .80 and the regression equation is handspan = 3 + 0.35 height What is the predicted handspan for someone 5 feet tall?
a machine produces parts with lengths that are normally distributed with ? 0.55. a sample of 10 parts has a mean
If a student found the following counts in a package of 200 Sour Patch Kids, did the distribution match the expected distribution?
$9,000 is a lot of money sitting in a bank savings account earning near zero percent interest. What cash alternatives would you consider?
Since you will take up one seat, you can only have five friends at one time. How many different groups of guests can you have?
The middle five weeks, and 60% during the last 5 weeks. Would a time-series graph of this data be appropriate? Give a reason for your answer.
construct a frequency distribution table and describe the shape of the distribution, what score identifies the center for the distribution and are the scores clustered or spread across the scale?
If the office purchased 10,000 thermometer covers this year, what is the price variance - What should budgeted labor for the month be?
What units represent the margin of error? Suppose you want to decrease the margin of error, but want to keep the 95% confidence interval. What do you need to do?
Identify the null hypothesis, alternative hypothesis, test statistic, P-value and conclusion about the null hypothesis. Use the P-value method.
disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. the results from 100
1 a sample of 100 flights for united airlines shows that 64 are on time. a sample of 100 flights for american shows
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