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JEE MATHEMATICS MCQ: STATISTICS
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The mean weight per student in a group of seven students is
55 kg. If the individual weights of 6 students are 52, 58, 55,
53, 56 and 54; then weights of the seventh student is
55 kg. If the individual weights of 6 students are 52, 58, 55,
53, 56 and 54; then weights of the seventh student is
View answer and explanation
Correct option: C
57 kg
Option C (57 kg) is correct because it is the weight that, when added to the weights of the other six students, results in the correct mean weight.
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