Concept explainers
Constructing Frequency Distributions. In Exercises 11–18, use the indicated data to construct the frequency distribution. (The data for Exercises 13–16 can be downloaded at TriolaStats.com.)
13. Burger King Lunch Service Times Refer to Data Set 25 “Fast Food” and use the drive-through service times for Burger King lunches. Begin with a lower class limit of 70 seconds and use a class width of 40 seconds.
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- Pls help ASAP.arrow_forwardUse Excel2. The monthly issues of the Journal of Finance are available on the Internet. The table below shows the number of times an issue was downloaded over the last 33 months. Suppose you wish to summarize the number of downloads with a frequency distribution. 312 2,753 2,595 6,057 7,624 6,624 6,362 6,575 7,760 7,085 7,272 5,967 5,256 6,160 6,238 6,709 7,193 5,631 6,490 6,682 7,829 7,091 6,871 6,230 7,253 5,507 5,676 6,974 6,915 4,999 5,689 6,143 7,086 a. Find the mean, median, mode, minimum and maximum values as well as variance, standard deviation, range, b. find Q1,Q2,Q3 and if there are any outliers c. Find the 35th percentile and the 90th percentile of the dataarrow_forward2. Construct FREQUENCY DISTRIBUTION TABLE. Show your solution for each step in constructing FDT. 135 42 49 110 50 112 42 44 120 48 52 52 55 50 56 58 60 140 62 62 70 84 73 76 78 80 85 138 65 68 86 92 94 94 88 90 49 100 108 109 50 112 114 115 48 130 40 85 139 60arrow_forward
- The frequency distribution shown in the figure lists the annual salaries of the managers at Universal Manufacturing of Melonville. Construct a histogram to represent the data.arrow_forwardThe frequency distribution to the right shows the various levels of demand for a particular laptop computer sold by a store during the last 50 business days. Determine the average number of laptops sold per day. Number of Laptops Frquency 0 251 52 63 114 15 2arrow_forwardAn environmental organization releases an annual beach report card based on water quality. The grades for 20 beaches in three counties in a certain state during dry weather are given below. B A+ F A+ F C A+ A+ A+ A+ A+ B A+ B A+ C C A A+ A Summarize the dry weather grades by constructing a relative frequency distribution.arrow_forward
- Two-Way Frequency Tables Practice 1. The students in a seaside school will have to take extra swimming lessons if they cannot swim. The table below gives information about the students in grades 7, 8 and 9. Can swim Cannot Total swim Grade 7 120 60 180 179 Grade 8 168 11 Grade 9 172 3. 175 74 534 Total a. Complete the table. 74 b. How many students need swimming lessons?. 179 c. How many students are there in 8th grade? d. How many of the 7th grade students cannot swim? (00 e. How many students in grades 7 and 8 can swim? 288 f. How many students are there altogether in grades 7, 8, and 9? 534 g. What is the probability that a student is a 7th grader? 32 h. What is the probability that a student is an 8th grader and can swim to all 8th graders? A 33 i. What is the probability that a student cannot swim? 14arrow_forwardPlease answer each question below pleasearrow_forwardConstruct one table that includes relative frequencies based on the frequency distributions shown below, then compare the amounts of tar in nonfiltered and filtered cigarettes. Do the cigarette filters appear to be effective? (Hint: The filters reduce the amount of tar ingested by the smoker.) Click the icon to view the frequency distributions. Complete the following relative frequency table.arrow_forward
- Construct one table that includes relative frequencies based on the frequency distributions shown below, then compare the amounts of tar in nonfiltered and filtered cigarettes. Do the cigarette filters appear to be effective? (Hint: The filters reduce the amount of tar ingested by the smoker.) Click the icon to view the frequency distributions. Complete the relative frequency table below. Relative Relative Frequency Frequency Tar (mg) (Nonfiltered) (Filtered) 4-8 % % % % % % % % % % 9-13 14-18 19-23 24-28 29-33 34-38 (Simplify your answers.) wan exa C Frequency Distributions Tar (mg) in Nonfiltered Cigarettes Frequency 14-18 19-23 24-28 29-33 34-38 8 N 2 1 -462 14 CID Tar (mg) in Filtered Cigarettes 4-8 9-13 14-18 19-23 Frequency 1 1 7 16 4 D - X k answer 85°F Clear OParrow_forwardThe table gives the frequency distribution for the final grades in a course. (Here A=4, B=3, C=2, D=1,F=0.) Determine the percentage of students who get a B or higher. Grade 0 1 2 3 4 Number of Occurrences 3 6 4 3 How could the answer be found? OA. Add the number of occurrences for each grade that is a B or higher. Then, divide by the number of grades. OB. Find the probability of each grade. Then, add them together to find the percent OC. Find the probability of each grade that is a B or higher. Then, find the average of those probabilities. OD. Find the probability of each grade. Then, add the probabilities for the grades that are a B or higher together to find the percent. The percentage of students who get a B or higher isarrow_forwardConstruct one table that includes relative frequencies based on the frequency distributions shown below, then compare the amounts of tar in nonfiltered and filtered cigarettes. Do the cigarette filters appear to be effective? (Hint: The filters reduce the amount of tar ingested by the smoker.) Click the icon to view the frequency distributions. Complete the relative frequency table below. Relative Relative Tar (mg) (Nonfiltered) (Filtered) 6-9 % % 10-13 % % if 14-17 % % 18-21 % % 22-25 % % 26-29 1% % % % Frequency Frequency 30-33 (Simplify your answers.) Do cigarette filters appear to be effective? O A. Yes, because the relative frequency of the higher tar classes is greater for nonfiltered cigarettes. O B. No, because the relative frequencies for each are not substantially different. O C. No, because the relative frequency of the higher tar classes is greater for filtered cigarettes. O D. This cannot be determined. Frequency Distributions Tar (mg) in Nonfiltered Cigarettes Frequency…arrow_forward
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillHolt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL