.2) Tabulation & Display of Quantitative Data 1. Tabulation – Constr. a frequency Distr. Table Question 1 : Use the data provided in Q.3 of Section 3 to constr. a freq. distr. Table 1. The following data are marks of students in an examination. 24 61 36 81 45 37 78 65 60 39 47 51 35 82 63 60 58 37 52 24 90 87 18 8 29 46 35 64 27 50 a. Construct a frequency distribution for the data. b. Compile the cumulative frequency table and draw the cumulative frequency curve. c. If the minimum for grade A was fixed at 74, estimate from your curve the percentage of candidates obtaining grade A. HINTS : Step 1 : Determine the Range, R = HDV – LDV Step 2 : Determine the number of Classes, K K = 1 + 3.3 log N Step 3 : Determine the Width, W for the classes

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3.2) Tabulation & Display of Quantitative Data
1. Tabulation – Constr. a frequency Distr. Table
Question 1 : Use the data provided in Q.3 of Section 3 to
constr. a freq. distr. Table
1. The following data are marks of students in an examination.
24 61 36 81 45 37 78 65 60 39
47 51 35 82 63 60 58 37 52 24
90 87 18 8 29 46 35 64 27 50
a. Construct a frequency distribution for the data.
b. Compile the cumulative frequency table and draw the cumulative frequency curve.
c. If the minimum for grade A was fixed at 74, estimate from your curve the percentage of candidates
obtaining grade A.
HINTS :
Step 1 : Determine the Range, R = HDV – LDV
Step 2 : Determine the number of Classes, K
K = 1 + 3.3 log N
Step 3 : Determine the Width, W for the classes

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