Ages Number of students 15-18 2 19-22 4 23-26 8 27-30 9 31-34 6 35-38 3 Based on the frequency distribution above, is 19 a: Upper class limit Class midpoint Class width Lower class limit Class b
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Ages | Number of students |
---|---|
15-18 | 2 |
19-22 | 4 |
23-26 | 8 |
27-30 | 9 |
31-34 | 6 |
35-38 | 3 |
Based on the frequency distribution above, is 19 a:
- Upper class limit
- Class midpoint
- Class width
- Lower class limit
- Class b
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- A researcher collects a sample of n = 20 Introductory to Psychology textbooks and records the number of pages in each book. The results are then placed in a grouped frequency table using intervales of 1-99 pages, 100- 199 pages, 200-299 pages, and so on. If the results were converted into frequency distrubution grapg, what kind(s) would be appropriate?(1) Data was collected for 187 randomly selected 10 minute intervals. For each ten-minute interval, the number of people entering the atrium of a large mall were recorded. The data is summarized in the table below. Number of guests Frequency 80 - 89 34 90 - 99 37 100 - 109 11 110 - 119 97 120 -129 8 What is the class width for this GFDT?. Class width =Q4S1 Construct a frequency distribution table with 5 classes. 90 80 98 102 74 93 92 96 90 100 87 102 89 97 90 94 87 78 103 92 83 92 101 94 82 93 81 91 91 84
- State the reason why the following frequency distribution is incorrectly constructed.Class Frequency45-50 350-55 055-60 660-65 565-70 3The table below shows a frequency distribution of the lifetimes of electronic tubes produced at a factory, determine the Arithmetic Mean for lifetimes of the tubesIdentify the lower class limits, upper class limits, class width, class midpoints, and class boundaries for the given frequency distribution. Also identify the number of individuals included in the summary. Blood Platelet Count of Females (1000 cells/muμL) Frequency 100-199 25 200-299 95 300-399 30 400-499 1 500-599 2 Identify the lower class limits. (Type integers or decimals. Do not round. Use ascending order.)
- A researcher wants to study the academic performance of urban secondary schools in his county. He decides to measure each school's academic performance by collecting data on the percentage of students passing at least one Advanced Placement (AP) exam. The following table shows each school with the percentage of students passing at least one AP exam. No. School 1 Booker T. Washington High School 2 Central Academy 3 Hsi Lai Academy 4 Racine High School 5 6 Springfield High School Hebrew Academy 23 24 25 7 8 9 10 11 12 13 14 15 16 17 18 19 Peralta High School 20 Grover Cleveland High School 21 Lowell High School 22 Danville High School Immaculate Conception High School Performing Arts High School West Springfield Technical High School Buckhead Heights High School Westwood Heights High School Longwood Academy Anderson Technical High School Taylor Technical High School Arborville High School Inglewood Heights Academy Robert Wood Johnson Health Academy Metropolitan Community School Salaam…The frequency distribution below summarizes employee years of service for Alpha Corporation. Determine thewidth of each class. (Hint: We do not know the range here so we can't use a formula to find the class width.How can we determine it by just looking at the table?) Years of service Frequency1-5 56-10 2011-15 2516-20 1021-25 526-30 3