markmeinberg
11.05.2021 •
Mathematics
A fair dice was rolled 100 times and the result are showing on the table to left.for which number one the dice was the experimental probability closest to the theoretical probability
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Ответ:
n = 59
Step-by-step explanation:
Square both sides
n+5 - 2sqrt[(n+5)(n-10)] + n-10 = 1
2n - 5 - 2sqrt[(n+5)(n-10)] = 1
2sqrt[(n+5)(n-10)] = 2n - 6
sqrt[(n+5)(n-10)] = n - 3
Square both sides
(n+5)(n-10) = (n-3)²
n²+5n-10n-50 = n²-6n+9
-5n-50 = -6n+9
n = 59