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Use the frequency distribution table below showing a sample data set for 10 students on a test with a maximum score of 20 to answer questions 8 and 9:
Score Frequency Midpoint Midpoint x Frequency Midpoint squared x Frequency1 - 5 46 - 10 311 - 15 216 - 20 1Totals
2. Find the mean score, X , of the data in the frequency distribution above.
3. Find the standard deviation of the scores in the frequency distribution above.
Create a scatter plot for those data. Based on scatter plot, how would you explain relationship between the two variable.
Managers from accounting department and information technology department. What is the probability that the committee will contain at least two managers from accounts departments.
What is the probability that a cereal would be high calorie given that its high fiber?(6)what is the probability that a cereal would be high calorie given that its low fiber?
Analyze a publicly traded company's financial statements for the prior five years. Include the following items as supplemental schedules to the analysis, prepared as individual worksheets
Do women talk more than men? Equip male and female students with a small device that secretly records sound for arandom 30 seconds during each 12.5 minute interval for two days.
What is the probability of finding exactly four watch soap operas?
The standard deviation of this poll is 4%. What would be the standard deviation if the sample size were increased from 93 to 187?
Random sample with a normal distribution with a mean of 60,000 and standard deviation of 2300. What warranty should the company us if they want 96% of the tires to outlast the warranty?
Three are selected, at random, without replacement from the batch. What is the probability that the third is not defective given that one of the previous two are defective?
In a transportation problem with 5 supply points, 3 demand points, and total supply equaling total demand, the number of decision variables will be:
On the other hand, if the market is unfavorable. ken will suffer a loss of $200.000. But ken has always been a very optimistic decision maker.
Body mass index is measured as the ratio of weight in kilograms to height in meters squared. Generate a 95% confidence interval estimate of the true BMI.
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