3.7 Make a stemplot. Here are the scores on the first exam in anintroductory statistics course for 30 students in one section of the course:80 7392 85 75 98 93 55 80 90 92 80 87 90 7265 7085 83 60 70 90 75 75 58 68 85 78 80 93Use these data to make a stemplot. Then use the stemplot to describe thedistribution of the first-exam scores for this course.STATCOURSE Stem-and-Leaf Display: Score T1Stem-and-leaf of Score T1 N = 305 586 06 587 002323513 7 5558(5) 8 0000312 8 55579 00022339 881Leaf Unit = 1

Answered: 3.7 Make a stemplot. Here are the…

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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Here are the scores for 15 students on a math test. 89, 86, 88, 92, 94, 91, 77, 75, 82, 93, 81, 87, 95, 73, 72 Draw the histogram for these data. Frequency 5+ 4+ 3+ 1+ 72-77 78-83 84-89 90-95 Scores
The highway speeds of 100 cars are summarized in the frequency distribution below. Find the estimated mean speed. Speed (mph) 30-39 40-49 50-59 60-69 70-79 Cars 3. 16 50 18 13 O A. 59.5 mph O B. 62.4 mph O C. 22.8 mph O D. 56.7 mph
Miss Rose teaches three ballet classes. Her students' data are shown in the relative frequency table. Beglnner Intermediate Advanced Total Вoys 0.15 0.2 0.05 0.4 Girls 0.1 0.35 0.15 0.6 Total 0.25 0.55 0.2 1.0 Which statement is true?
The following data represents the age of 30 lottery winners. 24 26 26 27 33 38 38 39 41 44 46 47 48 48 51 61 61 64 67 69 71 72 74 75 76 76 79 79 79 85 Complete the frequency distribution for the data. Age Frequency 20-29 30-39 40-49 50-59 60-69 70-79 80-89
The IQ scores of 50 students are given below. 118 85 110 86 109 106 110 89 106 115 107 99 91 114 112 106 89 118 90 119 101 117 111 86 86 100 115 94 112 110 106 88 86 99 102 99 109 104 115 85 94 87 102 96 106 88 97 86 106 119 (a) Construct a grouped frequency distribution for the data. Use 85-89 for the first class and use the same width for each subsequent class. Class Frequency 85 - 89 - - - - - - (b) Which of the following is the correct histogram for this data? 24681012IQ Score84.589.594.599.5104.5109.5114.5119.5Frequency[Graphs generated by this script: setBorder(54,40,20,15); initPicture(80,119.5,0,12);axes(238,2,1,null,2); fill="blue"; textabs([165,0],"IQ Score","above");line([84.5,-0.24],[84.5,0.24]); text([84.5,0],"84.5","below");line([89.5,-0.24],[89.5,0.24]); text([89.5,0],"89.5","below");line([94.5,-0.24],[94.5,0.24]); text([94.5,0],"94.5","below");line([99.5,-0.24],[99.5,0.24]);…
For a set of data arranged or sorted in numerical order, the value of the observation in the center is called the weighted mean. Group startsTrue or FalseTrue, unselectedFalse, unselectedGroup ends
Full data set 3. The data to the right represent the number of chocolate chips per cookie in a random sample of a name brand and a store brand. Complete parts (a) to (c) below. Name Brand Store Brand 22 29 24 22 28 23 25 22 17 28 24 35 32 28 33 27 23 31 26 28 15 24 23 21 (a) Draw side-by-side boxplots for each brand of cookie. Label the boxplots "N" for the name brand and "S" for the store brand. Choose the correct answer below. O A. OB. OC. N- S- 30 40 40 (b) Does there appear to be a difference in the number of chips per cookie? O A. Yes. The store brand appears to have more chips per cookie. O B. Yes. The name brand appears to have more chips per cookie. O C. No. There appears to be no difference in the number of chips per cookie. O D. There is insufficient information to draw a conclusion. (c) Does one brand have a more consistent number of chips per cookie? O A. Yes. The store brand has a more consistent number of chips per cookie. B. No. Both brands have roughly the same number…
The cost per load (in cents) of 35 laundry detergents tested by Consumer Reports is shown here. Frequency Class 13-19 20-26 27-33 34-40 41-47 48-54 55-61 62-68 623543 8 4 Find the mean of the data set. If necessary, round to the nearest whole number.
Here are the reading scores (out of 60) of 20 randomly selected kindergarten kids in a district 34, 26, 46, 46, 43, 42, 45, 39, 43, 32, 15, 36, 29, 39, 41, 27, 38, 58, 31, 35 Find the 5-number summary for the data set. Min: Q1: Median: Q3: Find the IQR of the data set. IQR: Find Q3+1.5(IQR). Q3+1.5(IQR) = Max: Are there any high outliers, that is, are there any numbers in the data set higher than Q3+1.5(IQR)? Select an answer Find Q₁-1.5(IQR). Q₁-1.5(IQR) Are there any low outliers, that is, are there any numbers in the data set higher than Q₁— 1.5(IQR)? Select an answer No, there are no low outliers 15 is a low outlier =

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