the mean of 40 observations was 160 it was detected on re checking that the value 165 was wrongly copied as 125 for compOn his first 5 biology tests, Bob received the following scores: 72, 86, 92, 63, and 77. What test score must Bob earn on his sixth test so that his average (mean score) for all six tests will be 80
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it was detected rechecking the value of 165 was wrongly copied by 125 for computing than mean. find the correct an mean. 2. See answers.
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