The following table presents the number of students absent in a middle school in northwestem Montana for each school day in January 2008. Date Number Absent Jan. 2 65 Jan. 3 67 Jan. 4 71 Jan. 7 57 Jan. 8 51 Jan. 9 49 Jan. 10 44 Jan. 11 41 Jan. 14 59 Jan. 15 49 Jan. 16 42 Jan. 17 56 Jan. 18 Jan. 21 Jan. 22 Jan. 23 Jan. 24 45 Jan. 25 46 Jan. 28 100 Jan. 29 59 Jan. 30 53 Jan. 31 51 a. Construct a boxplot. Б. There was a snowstorm on January 27. Was the number of absences the next day an outlier?

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1. The total number of Corona cases in the US, please keep in mind it is a running total. Courtesy of worldometers.info Date in 2020 Feb. 15 Day ( Number of Corona Cases (C) 1 15 Feb. 26 12 68 Mar. 8 23 541 Mar. 19 34 14,896 171,655 517,100 Mar. 30 45 Apr10. Apr. 21 May 2 May 13 May 24 June 4 56 67 835,559 1,170,301 1,443,627 78 89 100 1,704,112 1,942,737 111 June 15 122 2,187,774 June 26 133 July 7 July 18 2,556,718 3,109,759 144 155 3,849,089 July 29 Aug. 9 Aug. 20 Aug. 31 166 4,588,252 177 5,228,738 5,771,205 188 199 6,239,373 Sept. 11 Sept. 22 210 6,673,451 221 7,109,730 a. Let C be the total number of Corona Virus cases in the United States by the end of the r days since Feruary 14, 2020. (Let r = 0 represent Feb. 15, 2020.) Create a scatter plot of the data. Take up the entire piece of graph paper. Make sure to label the axes, and title your graph. Does it look linear? Exponential, Quadratic? c. Use the calculator to find the regression equation for this data. Express the…

2. The NCEE scores of 80 freshman students from the College of Engineering were taken and are shown below. 84 64 62 70 91 74 88 72 75 8 85 66 94 60 84 71 84 67 76 84 70 71 89 86 83 92 84 84 72 84 66 76 80 77 83 78 68 99 81 82 69 75 80 97 76 86 79 74 86 74 78 81 76 83 65 87 84 74 82 74 93 78 68 81 71 77 77 77 81 85 86 75 90 91 73 83 76 83 79 78 A. Construct a frequency distribution with 8 classes. Use 60 as the lowest class limit. B. Draw the histogram and the frequency polygon.

In recent year, 28 US States had one or more tribal gambling casinos. The following table presents the number of tribal gambling casinos in those states.3 2 26 70 2 2 87 3 4 3 22 39 314 7 3 21 8 2 11114 8 14 1 34 31 4 Find the 5-number summaryConstruct a boxplot for these data

Find the mode of the following number of countries randomly selected travelers visited in the past two years. 13,13,15,7,8,4,4,7,13

The ages of the 36 millionaires sampled are arranged in increasing order in the following table. 31, 37, 39, 39, 42, 42, 45, 47, 4848, 48, 52, 52, 53, 54, 54, 57, 5960, 61, 64, 64, 66, 66, 67, 68, 6869, 71, 71, 74, 75, 77, 79, 79, 79 a. Find and interpret the five-number summary.b. Identify potential outliers, if any.c. Construct and interpret a box plot.

3. A particular report included the following table classifying 815 fatal bicycle accidents that occurred in a certain year according to the time of day the accident occurred. Time of Day Number of Accidents midnight to 3 a.m. 46 3 a.m. to 6 a.m. 52 6 a.m. to 9 a.m. 85 9 a.m. to noon 72 noon to 3 p.m. 76 3 p.m. to 6 p.m. 157 6 p.m. to 9 p.m. 192 9 p.m. to midnight 135   For purposes of this exercise, assume that these 815 bicycle accidents are a random sample of fatal bicycle accidents. Suppose a safety office proposes that bicycle fatalities are twice as likely to occur between noon and midnight as during midnight to noon and suggests the following hypothesis:    Ha: p1 > 1/3, p2>2/3   Ha: p1 ≠1/33, p2=2/3   Ha: p1 =1/3,p2=2/3   Ha: H0 is not true.   Ha: p1 >1/3,p2<2/3   x2=______? p-value______?   State the conclusion in the problem context.   Reject H0. There is convincing evidence to conclude that bicycle fatalities are not twice as likely to…

3. A mathematics placement test is given to all entering freshmen at a small college. A student who receives a grade below 35 is denied admission to the regular mathematics course and placed in a remedial class. The placement test scores and the final grades for 20 students who took the regular course were recorded as follows: Placement Test Course Grade | Placement Test | Course Grade 50 53 90 54 35 35 41 80 60 91 61 48 40 56 60 71 55 68 60 71 65 36 40 47 35 11 55 53 60 70 50 68 90 79 65 57 35 59 50 79 (a) Plot a scatter diagram. (b) Find the equation of the regression line to predict course grades from placement test scores. (c) Graph the line on the scatter diagram (d) If 60 is the minimum passing grade, below which placement test score should students in the future be denied admission to this course?

Find the mode of the following number of states randomly selected travelers at a service plaza visited in the past three years. 18,13,8,8,13,10,13,10,9,18.