5 Creating A Histogram From A Grouped Frequency Distribution Table A Researcher Wants To Study The Academic Performance 1 (38.36 KiB) Viewed 160 times
5 Creating A Histogram From A Grouped Frequency Distribution Table A Researcher Wants To Study The Academic Performance 2 (30.76 KiB) Viewed 160 times
5. Creating a histogram from a grouped frequency distribution table A researcher wants to study the academic performance of large primary schools (defined as four or more classrooms per grade) in his county. He decides to measure each school's academic performance by collecting data on the percentage of students performing at or above grade level. The following table shows each school with the percentage of students performing at or above grade level. Table1 Academic Performance (Percentage of students performing at or above grade level) 98 No. 1 N 91 3 89 4 86 5 81 6 77 7 74 8 68 9 64 10 60 11 58 12 55 School Buckwood Hills Elementary Community Elementary Irving Street Elementary Ukiah Township Elementary Washington Elementary High Street Elementary Longwood Academy South Central Elementary Wildwood Elementary Central Academy Wilbur Cross Elementary Metropolitan Community School Anapolis Elementary Westwood Heights Elementary American Elementary John F. Kennedy Elementary Unity Elementary Rossmore Academy Santa Ana Elementary Gunn Academy Monroe Elementary Dunwood Academy Piedmont Ave. Elementary Samuel Clemens Elementary Florence Nightingale Elementary 13 53 14 51 15 47 16 44 17 41 18 37 19 34 20 33 21 30 22 27 23 21 24 15 25 2
Table 2 divides the range of these 25 schools' academic performance into ten intervals. Based on the information provided in Table 1, use the dropdown menus to fill in the rest of Table 2 and complete the remainder of the problem. Note that the scores are listed in lowest to highest order. Table 2 Class Interval (Percentage of students performing at or above grade level) 90-99 f W N 80-89 70-79 2 60-69 50-59 40-49 30-39 20-29 2 10-19 1 0-9 1 Total (N) In the frequency distribution table for the interval of 40-49, the real lower limit is , and the real upper limit is Now complete the following histogram. (Hint: Use a different orange rectangle for each class interval.) 5 1 NUMBER OF SCHOOLS 0 0 10 20 80 90 100 30 40 50 60 70 ACADEMIC PERFORMANCE
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