1. The smaller the spread of scores around the arithmetic mean,a. the smaller the coefficient of variationb. the smaller the standard deviationc. the smaller the interquartile ranged. all of the above2. The scores from a state standardized test have a mean of 200 and a standard deviation of 50. Thedistribution of the scores is roughly bell shaped. The percentage of scores that lie between 100 and 300 isapproximately1a. 34%a. Ordinalb. Nominalc. Discreted. Continuouse. Explanatory113. Hours of driving from home to work per day is aa. 17b. 18c. 18.5d. 20e. 222b. 47.5%4. The data show the total number of medals (gold, silver, and bronze) won by each country winning atleast one gold medal in the Summer Olympics. What is the interquartile range of the numbers of medalswon by these countries?14314c. 50%319522d. 68%923924e. 95%11variable.1125 29

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A company decides to investigate the amount of sick leave taken by its employees. A sample of seven employees yields the following numbers of days of sick leave taken in the past year. 1 1 3 0 0 63 Use this information to answer parts a through c. a. Find and interpret the range. The range is 6 days. Choose the correct interpretation of the range below. A. The largest difference between the mean and any other value is equal to the range. B. The number of days separating the fewest and most sick days taken is equal to the range. C. The range represents the average distance of an observation from the mean. D. The range gives the most useful value for measuring the spread of the data.
Please answer and explain #7
I’ve already posted this one, but I’m posting it again, because I need to be shown what to input into my TI-84 Plus calculator to solve.
D Question 24 The weights of cats is Normally Distributed. The mean weight is 10 lbs with a standard deviation of 0.2 lbs. Draw the normal curve and fill in the cut scores and percentages. Then answer the questions below: Based on a sample of 600 cats, how many would you expect to weigh more than 10.4 lbs? Based on a sample of 600 cats, how many would you expect to weigh at least 9.8 lbs. but not more than 10.2 lbs? Based on a sample of 600 cats, how many would you expect to weigh more than 10 lbs?
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The data is in the height column. Answer 7 to 10
Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 57.4 degrees. The mean of the frequency distribution is (Round to the nearest tenth as needed.)
A distribution of numbers is given by the following frequency histogram. Which of the following would be true? a. The mean would be greater than the median O b. The median would be greater than the mean C. The standard deviation would be less than 1 O d. The mean would be greater than the standard deviation
A. Population ? B. Population mean ? C. Median ? F. IQR ? G. Population standard deviation ?H. population variance ?
Use the following set of values for #10 - 13. Round answers to nearest hundredth, if necessary. .3, .6, 9, 1.3, .4, .6, 1.2, 1.4, 1.1, .2, .2 10. Find the mean, median, and mode(s) 11. Find the range 12. Find the interquartile range 13. Find the standard deviation
Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 52.5 degrees. Low Temperature (o F) 40 - 44 45 - 49 50 - 54 55 - 59 60 – 64 D Frequency 2 9. ... The mean of the frequency distribution is degrees. (Round to the nearest tenth as needed.) Which of the following best describes the relationship between the computed mean and the actual mean? O A. The computed mean is close to the actual mean because the difference between the means is more than 5% of the actual mean. B. The computed mean is not close to the actual mean because the difference between the means is less than 5% of the actual mean. C. The computed mean is not close to the actual mean because the difference between the means is more than 5% of the actual mean. D. The computed mean is close to the actual mean because the difference between the means is less than 5% of the actual mean.
Choose the letter of the correct answer. 1. Which of the following is always true? A. standard deviation can be less than 0 B. mean can be used for qualitative data C. coefficient of variation is an absolute dispersion D. standard deviation is always positive 2. The following statements indicate the use of inferential statistics EXCEPT A. A manufacturer of light bulbs claims that their light bulbs last for 10,000 hours. B. The yearly expenditures on food for 15 families are estimated to be P200,000. C. A recent study showed that eating garlic can lower blood pressure. D. A survey says that 1 out of 50 males is a member of a fitness center. 3. The "time consumed on Facebook on a particular day" is what type of variable? A. qualitative B. discrete quantitative C. continuous quantitative D. cannot be determined

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