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A class interval of a data has 15 as the lower limit and25 as the size then the class mark is |
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Answer» Step-by-step explanation: 1) lower limit =15 ,size=25 upper limit=lower limit+size=15+25=40. CLASS mark=mean of upper and lower limit. 2)15+25/2=20 HOPE this answer is WELL for you plz mark me as brainliest |
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