The data below are the passing scores on an Algebra exam in one class. For this question, round all answers to the nearesttenth, as needed

Question

 The data below are the passing scores on an Algebra exam in one class. For this question, round all answers to the nearesttenth, as needed.

60  68  88  76  60  92  92  92  88  60  68  92  88  

92  64  60  76  64  92  88  76  60  60  64  60  88  

76  64  

Construct the frequency table by using fiveclasses.  

Class Limit	f	Class Midpoint	Cumulative Frequency	Class Boundary

Answer 1

Stem and Leaf

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6 | 0,0 0 0 0 0 0 4 4 4 4 8 8

7 | 6 6 6 6

8 | 8 8 8 8 8

9 | 2 2 2 2 2 2

median is 76

class limit freq class midpoint cumulative frequency class boundary class total

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60-69 13 64.5 13 69 13*60 + 28 = 808

70-79 4 74.5 17 79 4*70 +24 = 304

80-89 5 84.5 22 89 5*80 + 40 = 440

90-99 6 94.5 28 99 90*6 +12 = 552

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28 2104

mean avg = 2104/28 = 75+ 1/7