20 The figure below shows relative frequency histogram for 50 concrete cubes classified according to compressive strength of the cubes. While x- axis represents the class midpoints of compressive strength, y-axis represents relative frequency for concrete cubes. Determine the harmonic mean of compressive strength * .of the cubes Relative Frequency Chart 0.45 0.4 0.35 0.3 0.25 능 0.2 7 0.15 0.1 0.05 25.5 35.5 45.5 55.5 Class Midpoints of Compressive Strength Relative Frequency for Concrete Cubes
20 The figure below shows relative frequency histogram for 50 concrete cubes classified according to compressive strength of the cubes. While x- axis represents the class midpoints of compressive strength, y-axis represents relative frequency for concrete cubes. Determine the harmonic mean of compressive strength * .of the cubes Relative Frequency Chart 0.45 0.4 0.35 0.3 0.25 능 0.2 7 0.15 0.1 0.05 25.5 35.5 45.5 55.5 Class Midpoints of Compressive Strength Relative Frequency for Concrete Cubes
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:20 The figure below shows relative
frequency histogram for 50
concrete cubes classified
according to compressive
strength of the cubes. While x-
axis represents the class
midpoints of compressive
strength, y-axis represents
relative frequency for concrete
cubes. Determine the harmonic
mean of compressive strength
* .of the cubes
Relative Frequency Chart
0.45
0.4
0.35
0.3
0.25
능 0.2
7 0.15
0.1
0.05
25.5
35.5
45.5
55.5
Class Midpoints of Compressive Strength
Relative Frequency for Concrete Cubes
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