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Elena L [17]
3 years ago
7

The table shows the results of randomly selecting colored marbles from a bag 40 times. The marble was returned to the bag after

each selection. Based on the results, what is the expected probability of randomly selecting a green marble from the bag in one attempt?
A: 0.125
B:0.20
C: 0.80
D:1.0

Mathematics
1 answer:
Rom4ik [11]3 years ago
5 0

Answer:

Item 23 The table shows the results of randomly selecting colored marbles from ... Are you an educator? ... The marble was returned to the bag after each selection . ... results, what is the expected probability of randomly selecting a green marble ... A . 0.125 B . 0.20 C . 0.80 D . 1.0 Item 24 The six sides of a number cube are ...

Step-by-step explanation:

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Let z be the product of any 5 consecutive three digit odd natural numbers. When you multiply
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Answer:

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Step-by-step explanation:

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Since we're only interested in the units digit, we can find the mod 10 value of this to be ...

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  x(x⁴ +4) = 1(1⁴ +4) = 5

  3(3⁴ +4) = 3(1 +4) = 5 . . . . mod 10

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  7(7⁴ +4) = 7(1 +4) = 5 . . . . mod 10

  9(9⁴ +4) = 9(1 +4) = 5 . . . . mod 10

In every case, the units digit of 101z will be 5.

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