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Question: The histogram shows the number of students and their age groups in a school. Which interval has the lowest frequency?



A ) 7 to 9
B ) 13 to 15
C ) 4 to 6
D ) 10 to 12

Steps to derive

1 The smallest bar gives the least frequency, which is of the interval 13 to 15.

2 The interval 13 to 15 has the lowest frequency.



Hence the right answer is Option B

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