Benthega
21.09.2020 •
Mathematics
Each of the following lists has an average of 50. For each one, guess whether the SD is around 1, 2, or 10. a) 49, 51, 49, 51, 49, 51, 49, 51, 49, 51 b) 48, 52, 48, 52, 48, 52, 48, 52, 48, 52 c) 48, 51, 49, 52, 47, 52, 46, 51, 53, 51 d) 54, 49, 46, 49, 51, 53, 50, 50, 49, 49 e) 60, 36, 31, 50, 48, 50, 54, 56, 62, 53
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Ответ:
The exact right answer fore this question would be...
Use the quotient property to rewrite the expression.
Write the difference of logs as the quotient log((d+1)/d).
Substitute 1 for d to get log(2).
Since log(2) = 0.30, the probability that the number 1 is the leading digit is about 30%.