3) the college registrar\'s office record the number of students receiving a gra

Question

3) the college registrar's office record the number of students receiving a grade of incomplete.the results for the past twenty quarters ranged from the smallest value of 31 students to the largest value of 80 students. Complete the frequency table below using 5 classes.find the class width and fill in the value for.class limit, midpoint, class boundaries, relative frequency and cumulative frequency.use the frequency values already listed in the chart Class limit f midpoint Class boundaries Relative frequency Cumulative frequency 5 2 4 6 3 B) sketch a frequency histogram for the information from part a.); making sure to label everything that needs to labeled. C) what range of values for the number of the students( classes limit) makes up 20% of the total sample size? D) what range of values for the number of students( classes limit) includes the median of the data?

Explanation / Answer

Q3.A The range of students is from the smallest value of 31 students to the largest value of 80 students.

number of classes are 5 therefore the class width is 9.

Class frequency midpoint class boundaries(LL,UL) relative frequency cumulative frequency

31 -40 5 35.5 31,40 0.25 5

41-50 2 45.5 41,50 0.1 7

51-60 4 55.5 51,60 0.2 11

61-70 6 65.5 61,70 0.3 17

71-80 3 75.5 71,80 0.15 20

c) for the number of the students( classes limit 51-60) makes up 20% of the total sample size.

d) the number of students( classes limit 51-60) includes the median of the data.

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