3. The following tables present the ratings for the top 20 prime time shows for the 2007-2008 seasonand for the 2017-2018 season. The rating is the percentage of households with TV sets that wereturned on during the program.2007-200821.715.42017-20189.714.010.216.113.1 10.6 20.8 19.815.0 14.211.911.510.4 10.5 16.111.6 12.715.9 8.2 9.712.8 12.6 12.7 9.216.6 12.0 12.0 10.813.6 11.1 10.913.89.4 9.2 9.19.2 9.0 8.8A. Use your calculator to find the standard deviation of the 2007-2008 TV ratings(to the hundredths place).C. Compute the range for both seasons.B. Use calculator to find the standard deviation of the 2017-2018 TV ratings(to the hundredths place).2007-2008 Range_2017-2018 Range_2A.2B.D. Use complete sentences to compare the standard deviations and ranges from the two seasons.DO NOT USE DEFINITIONS in your writing.4. In a poll, respondents were asked if they had ever been in a car accident. 379 respondentsindicated that they had been in an accident while 622 indicated that they had not been in acar accident. If one of these respondents is randomly selected, what is the probability thatthe respondent was in a car accident? Round to three significant figures or write the answer as asimplified fraction.5. The secretary of state, Antony Blinken, suggested that the probability that the United Stateswould provide 250 million dollars to Ukraine in November is 0.638. Find the complementto this event.5.

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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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Consider the highest daily snowfall accumulation in Montréal per winter season, measured at the Montréal Airport from 1964/65 to 2014/15. The measurements in cm are as follows: maxsnow ## [1] 15.2 25.4 32.8 14.5 23.6 37.8 43.2 22.9 20.3 21.1 25.7 24.6 25.9 22.5 32.8 ## (16] 19.6 11.0 18.2 10.8 21.3 22.0 13.6 21.8 21.0 21.2 12.2 20.2 17.2 40.0 27.8 ## [31] 13.2 20.8 21.4 23.6 35.8 33.9 31.0 18.8 15.8 18.8 17.2 41.2 35.2 31.8 23.8 ## [46] 29.8 20.4 16.0 45.6 20.8 20.0 (a) Is this data a realization of a random sample? Provide rationale for your answer (you may list pros and cons if you like). (b) Which population quantities (mean, variance, probabilities of certain events) would you like to use these data to estimate and why? (The answers to these questions are subjective).
Data shows the temperature for the months of Novemember 2020 and November 2021. Date 2020 2021 1-Nov 55 61 2-Nov 47 52 3-Nov 57 55 4-Nov 67 53 5-Nov 70 55 6-Nov 73 55 7-Nov 77 56 8-Nov 80 68 9-Nov 79 72 10-Nov 76 67 11-Nov 72 67 12-Nov 60 65 13-Nov 54 64 14-Nov 54 47 15-Nov 66 50 16-Nov 54 50 17-Nov 49 61 18-Nov 38 72 19-Nov 50 50 20-Nov 65 49 21-Nov 66 56 22-Nov 60 50 23-Nov 55 45 24-Nov 50 46 25-Nov 61 59 26-Nov 68 48 27-Nov 62 43 28-Nov 57 43 29-Nov 59 44 30-Nov 67 41 Find the variance and standard deviation for each group.
We want to assess the relationship between class rank and how many minutes a person spends on social media. We randomly select 5 students from UMD and have them report their class rank and number of minutes per week they spend on social media. We get the following data. Because class rank is ordinal data, we want to compute Spearman's rho. Please compute the numerator for Spearman's rho and use 4 decimal places for all computations and final answer. (the numerator is referring to the numerator of the fraction, not including the 1- part) Minutes on Social Class Rank Media per Week 100 1,302 500 25 250 10 600 50 200
12 13 14 15 16 17 18 19 20 21 22 23 24 25 H Movie Ticket Prices 4 5 5 B 6 10 11 Cost Of Ticket Which of the following is the best measure of center for the data shown, and what is that value? O The mean is the best measure of center and equals 11. O The mean is the best measure of center and equals 11.5. O The median is the best measure of center and equals 11. O The median is the best measure of center and equals 11.5.
Data shows the temperature for the months of Novemember 2020 and November 2021. Date 2020 2021 1-Nov 55 61 2-Nov 47 52 3-Nov 57 55 4-Nov 67 53 5-Nov 70 55 6-Nov 73 55 7-Nov 77 56 8-Nov 80 68 9-Nov 79 72 10-Nov 76 67 11-Nov 72 67 12-Nov 60 65 13-Nov 54 64 14-Nov 54 47 15-Nov 66 50 16-Nov 54 50 17-Nov 49 61 18-Nov 38 72 19-Nov 50 50 20-Nov 65 49 21-Nov 66 56 22-Nov 60 50 23-Nov 55 45 24-Nov 50 46 25-Nov 61 59 26-Nov 68 48 27-Nov 62 43 28-Nov 57 43 29-Nov 59 44 30-Nov 67 41 Find the mean, median, mode and range for each group.
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For n = 15 year-2017 model sedans whose horsepower is between 290 and 390, the following measurements give the time in seconds for the car to go from 0 to 60 mph: 4.8, 6.8, 6.0, 5.0, 6.3, 5.7, 5.8, 6.1, 5.5, 6.2, 4.9, 5.4, 5.1, 5.9, 5.6. The interval (Y1, Y7) could serve as a confidence interval for 1o.25. What is its confidence coefficient?

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The following tables presen and for the 2017-2018 seas turned on during the progra 2007-2008 21.7 10.2