Math 221 week 5 quiz Study guides, Class notes & Summaries
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MATH-221 Week 5 Quiz (v2) | TOP SCORE | Already GRADED A+
- Exam (elaborations) • 9 pages • 2022
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Question: (CO 3) Consider the following table. If you … the probability distribution for these data, what would … the probability of 40-49? Question: (CO 3) Consider the following table of hours worked by part-time employees. These employees must work in 5-hour blocks. Find the mean of this variable. Question: (CO 3) Consider the following table. Find the variance of this variable. Question: (CO 3) Consider the following table. Find the standard deviation of this variable. Question: (CO 3) F...
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MATH 221 Week 5 Quiz
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1.	Question:(CO 3) Consider the following table. If you created the probability distribution for these data, what would be the probability of 30-39? 
2.	Question:(CO 3) Consider the following table of hours worked by part-time employees. These employees must work in 5-hour blocks.Find the mean of this variable. 
3.	Question:(CO 3) Consider the following table.Find the variance of this variable. 
4.	Question:(CO 3) Consider the following table.Find the standard deviation of this variable. 
5.	Que...
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MATH 221 Week 5 Quiz
- Exam (elaborations) • 22 pages • 2021
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1.	Question:(CO 3) Consider the following table. If you created the probability distribution for these data, what would be the probability of 60-69? 
2.	Question:(CO 3) Consider the following table of hours worked by part-time employees. These employees must work in 5-hour blocks.Find the mean of this variable. 
3.	Question:(CO 3) Consider the following table. Find the variance of this variable. 
4.	Question:(CO 3) Consider the following table. Find the standard deviation of this variable. 
5.	Q...
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MATH 221 Week 3 Quiz: Statistics for Decision-Making (v1) | TOP SCORE 100% GURANTEED
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MATH 221 Week 3 Quiz: Statistics for Decision-Making (v1) 
 
Question: A survey of 128 DeVry statistics students found that 83% read the announcements each week. What is the population and what is the sample? 
Question: In asking all 359 second graders in a school district, it is found that on average, these second graders have 2.5 pets. Is this number a parameter or a statistic and why? 
Question: (CO 1) Classify the data of the top grossing movies for 2017: 
Question: (CO 1) The data that list...
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MATH 221 Week 5 Quiz
- Exam (elaborations) • 13 pages • 2021
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1.	Question: Let x represent the number of cars in a parking lot. This would be considered what type of variable: 
2.	Question: Let x represent the height of corn in Oklahoma. This would be considered what type of variable: 
3.	Question: If you created the probability distribution for these data, what would be the probability of 40-49? 
4.	Question: Consider the following table.Find the mean of this variable. 
5.	Question: Consider the following table. Find the variance of this variable. 
6.	Que...
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MATH 221 Week 5 Quiz
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1.	Question: (CO 4) From a random sample of 68 businesses, it is found that the mean time that employees spend on personal issues each week is 5.8 hours with a standard deviation of 0.35 hours. What is the 95% confidence interval for the amount of time spent on personal issues? 
2.	Question: (CO 4) If a confidence interval is given from 8.52 to 10.23 and the mean is known to be 9.375, what is the maximum error? 
3.	Question: (CO 4) Which of the following is most likely to lead to a small margin ...
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MATH-221 Week 5 Quiz (v4) | 100 out of 100 | Best SCORE Paper
- Exam (elaborations) • 10 pages • 2022
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Question: Let x represent the number of cars in a parking lot. This would … what type of variable: 
Question: Let x represent the height of corn in Oklahoma. This would … what type of variable: 
Question: If you created the probability distribution for these data, what would … the probability of 40-49? 
Question: Consider the following table. Find the mean of this variable. 
Question: Consider the following table. Find the variance of this variable. 
Question: Consider the following table....
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Math 221 Week 5 Quiz (Questions and answers) Download to score an A+
- Exam (elaborations) • 13 pages • 2021
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Question 1 
2 / 2 pts 
(CO 4) Consider the following table: 
Age Group Frequency 
18-29 983 
30-39 784 
40-49 686 
50-59 632 
60-69 541 
70 and over 527 
If you created the probability distribution for these data, what would be the probability of 40-49? 
 0.237 
 0.425 
 0.189 
Correct! 
 0.165 
Question 2 
2 / 2 pts 
(CO 4) Consider the following table of hours worked by part-time employees. These employees must 
work in 5 hour blocks. 
Weekly hours worked Probability 
5 0.06 
15 0.61 
20 0.18 ...
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MATH 221MATH 221 WEEK 5 60 PINTS QUIZ 2.pdf
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MATH 221MATH 221 WEEK 5 60 PINTS QUIZ
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Exam (elaborations) MATH221 Graded week 7 quiz (MATH221)MATH 221 Week 7 Quiz LATEST UPDATE 2022.
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(TCO 6) In the standard normal distribution, the standard deviation is always Student Answer: 0 1 2 none of these 2. Question : (TCO 6) The area under a normal curve with mu = 8 and sigma = 3 is Student Answer: 0 1 2 none of these 3. Question : (TCO 6) If Larry gets a 70 on a physics test where the mean is 65 and the standard deviation is 5.8, where does he stand in relation to his classmates? Student Answer: He is in the top 10%. He is in the top 20%. He is in the bottom 20%. He is in the botto...
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