in a class 20 students are 1.15m tall, 15 students are 1.20m tall and 5 students are 1.25m tall. what is the average height of the students in the class
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average height = sum of heights ÷ number of students
So average height = ((20×1.15)+(15×1.20)+(5×1.25))÷40
On solving
Average height= 1.18 m
So average height = ((20×1.15)+(15×1.20)+(5×1.25))÷40
On solving
Average height= 1.18 m
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7
Average height of the students in the class is 1.18125 m
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