Chapter 3 Boxplots HW

Chapter 3: Boxplots HW Julia Dwinell Question 1 10/10 pts 1-2 98 Question 2 10 pts 98 Question 3 10/10 pts 2 98 Consider the boxplot below. 0 10 20 30 40 50 60 70 data 6 22 40 53 68 a. What quarter has the smallest spread of data? Second Quarter First Quarter Fourth Quarter Third Quarter b. What is that spread? 13 c. Find the Inter Quartile Range (IQR): 31 d. Which interval has the most data in it? 22 - 40 39 - 53 8 - 22 53 - 68 e. What value could represent the 29th percentile? 25 60 46 7 Which of the following statements are true about the boxplot shown here? I. The distribution is skewed right. II. The interquartile range is about 8. III. The median is about 10. I only II only III only I and II II and III Hint: Help Video [+] Question 4 10/10 pts 2 99 Question 5 10/10 pts 2 99 Question 6 10/10 pts 1-2 99 Question 7 10/10 pts 1-2 99 The boxplot below shows salaries for Construction workers and Teachers. 20 25 30 35 40 45 50 Salary (thousands of $) Teacher Construction Jennie makes the median salary for a construction worker. Markos makes the median salary for a teacher. Who makes more money? Jennie Markos How much more? $ 10000 Hint: Help Video [+] Here is a set of sample data 8 12 13 18 21 22 24 25 31 32 40 49 57 59 60 62 65 73 86 88 96 97 98 Identify the 5 number summary (min, Q1, median, Q3, max) 8 , 22 , 49 , 73 , 98 Hint: Help Video [+] Here is a set of data. 33 52 136 151 185 326 335 384 389 493 513 550 624 633 722 876 963 975 Identify the 5 number summary (min, Q1, median, Q3, max) 33 , 185 , 441 , 633 , 975 Hint: Help Video [+] 7 8 9 10 11 12 13 14 15 16 17 18 19 data Based on the boxplot above, identify the 5 number summary (min, Q1, median, Q3, max) 7 , 9 , 10 , 18 , 19 The Inter-Quatile Range (IQR) = Q3 Q1 = 9 Hint: Help Video [+]