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Ilia_Sergeevich [38]
3 years ago
15

You roll a standard number cube 8 times. Assume that each number is equally likely to come up each time you roll. To the nearest

tenth of a percent,
what is the probability that a number less than 3 will come up exactly 3 of the 8 times?
A 27.3%
B. 21.9%
C. 6.8%
D. 0.5%
Mathematics
1 answer:
Dahasolnce [82]3 years ago
7 0

Answer:

c.6.8

Step-by-step explanation:

yan po sana maka tulong

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Let n be unknown divisor and a be the same remainder, then

63=q_1\cdot n+a\\ \\45=q_2\cdot n+a\\ \\69=q_3\cdot n+a

Subtract a from all equalities:

63-a=q_1\cdot n\\ \\45-a=q_2\cdot n\\ \\69-a=q_3\cdot n

Subtract them:

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