3 Here is a data set: 17 36 18 23 29 Question 1 0/1 pt O 2 11 27 11 42 18 22 28 27
3 Here is a data set: 17 36 18 23 29 Question 1 0/1 pt O 2 11 27 11 42 18 22 28 27 46 32 A political action committee is interested in the proportion of all registered voters who will vote "Yes" 31 34 28 28 29 on a measure to expand the use of solar energy. Match the vocabulary word with its corresponding 26 41 14 19 26 example. 21 39 27 22 10 All registered voters in the US You are examining the data with a stem-and-leaf plot. Here is the start of the plot. Finish the plot. 1# 1 01147889 The proportion of registered voters who will vote Yes on the measure 2# 1 12236677788899 3# | 12469 V The proportion of the 1000 registered voters that were surveyed who will vote Yes 4# on the measure V Yes or No for each registered voter 0/1 pt O 2 The 1000 registered voters who participated in the study The list of Yes and No answers that were given by the 1000 participants in the study a. Population b. Parameter c. Sample d. Statistic e. Variable f. Data Question 2 0/1 pt 5 2 50 part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below: # of Courses Frequency |Relative Frequency| Cumulative Frequency 18 0.36 2 13 3 a. Complete the table. b. What percent of students take exactly one course? Question 3 0/1 pt 5 2The IQ scores of 50 students are given below. 10 112 99 111 91 85 103 100 112 85 95 103 95 89 101 85 102 91 112 93 105 108 92 96 99 95 87 106 96 85 Frequency 111 103 92 98 116 91 87 114 99 85 92 98 102 119 110 117 111 103 93 93 (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. 84.589.594.599.5104.309.314.319.5 10 Score Q Class Frequency 85 89 Frequency O 85 90 95 100 105 110 115 120 IQ Score Q b) Which of the following is the correct histogram for this data? Question 5 0/1 pt O 2 To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of credits for the course. Suppose a student had these grades: 3.9 in a 5 credit Math course 2.6 in a 2 credit Music course Frequency O 3.0 in a 5 credit Chemistry course 3.1 in a 4 credit Journalism course What is the student's GPA for that term? Round to two decimal places. Student's GPA = 85 95 105 115 125 IQ Score . Question 6 0/1 pt 9 2 Here is a set of data. 53 97 103 136 201 244 285 301 347 400 515 797 819 989 Frequency O Identify the 5 number summary (min, Q1, median, Q3, max) 85 105 115 IQ Score Question 0/1 pt O 2i The five number summary of a dataset was found to be: 1,4, 7,17, 20 An observation is considered an outlier if it is below: An observation is considered an outlier if it is above: . Question 8 if % 789] Based on the boxplot above, identify the 5 number summary (min, Q1, median, Q3, max) The Inter-Quatile Range (IQR) = Q3 7 Q1 = 0 Question 9 The following refer to the following data set: 0 [I I2 1314 I516 17 13 19 20 data Q 82 30 9Z 59 49 96 63 81 59 29 B3 What is the mean (5;) of this data set? mean = What is the median of this data set? median = (Please show your answer to one decimal place.) What is the mode of this data set? mode = 0 Question 10 [40/1 pt '02 130/1 pt '02 30/1 pt '02 10 Every year, the students at a school are given a musical aptitude test that rates them from 0 (no musical aptitude) to 5 (high musical aptitude)' This year's results were: Aptitude Score Freguency 0 3 1 3 Z 1 3 3 4 3 5 2 The mean ('bar x' ) aptitude score: (Please show your answer to 1 decimal place) The median aptitude score: The mode aptitude score: (Please separate your answers by ',' in bimodal situations Enter DNE if there is no mode.) 0 Question 11 [40/1 pt E) z The graph illustrates the distribution of test scores taken by College Algebra students, The maximum possible score on the test was 120, while the mean score was 74 and the standard deviation was 10' 44 54 64 74 84 94 I 04 Dism'bun'on of Test Scores Q Use the "Einrical Rule", not a calculator or other technology. Do not round your answers, What is the approximate percentage of students who scored between 74 and 84 on the test? 96 What is the approximate percentage of students who scored between 54 and 94 on the test? 96 What is the approximate percentage students who scored between 64 and 84 on the test? 96 What is the approximate percentage of students who scored less than 54 on the test? 96 g IZO/1pt'02
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