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3 years ago

PLEASE HELP ME :) !!!!!!

Mathematics

1 answer:

balandron [24]3 years ago

6 0

The correct answet is 15a

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Determine the greatest common factor for the pair of numbers.

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28 40

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28: 2 * 2 * 7

40: 2 * 2 * 2 * 5

What do they have in common? two 2s

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What is the value of m What is the value of n

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3 years ago

) Determine the probability that a bit string of length 10 contains exactly 4 or 5 ones.

yanalaym [24]

Answer: 0.4512

Step-by-step explanation:

A bit string is sequence of bits (it only contains 0 and 1).

We assume that the 0 and 1 area equally likely to any place.

i.e. P(0)= P(1)= $\dfrac{1}{2}$

The length of bits : n = 10

Let X = Number of getting ones.

Then , $X \sim Bin(n=10,\ p=\dfrac{1}{2})$

Binomial distribution formula : $P(X=x)=^nC_x p^x q^{n-x}$ , where p= probability of getting success in each event and q= probability of getting failure in each event.