Mid value of :
4.5 - 14.5
14.5 - 24.5
24.5 - 34.5
34.5 - 44.5
44.5 - 54.5
54.5 - 64.5
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Answer:
Step-by-step explanation:
CI [class interval] Xi [mid value]
4.5 - 14.5 9.5
14.5 - 24.5 19.5
24.5 - 34.5 29.5
34.5 - 44.5 39.5
44.5 - 54.5 49.5
54.5 - 64.5 59.5
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