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3 years ago

How much this will be ......evaluate -4 (9)(-5)

Mathematics

1 answer:

klemol [59]3 years ago

3 0

-4(9)(-5) = (-36)(-5) because -4(9) = -36. (-36)(-5) = 180

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Answer:

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Step-by-step explanation:

Mr. bowens test is normally distributed with a mean (μ) of 75 and a standard deviation (σ) of 3 points.

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3 years ago

If a 10 symbol sequence is sent through the channel,what is the probability that up to 3 symbols are in error out of the 10trans

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Answer: 0.171887

Step-by-step explanation:

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This probability is a Binomial random variable of sequence Sn, where Sn counting the number of success in a repeated trials.

P(Sn =X) = nCx p^x (1-p)^(n-1)

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P(0<= X <=3) = 10C0 × (0.5)^0 × (0.5)^10 + 10C1× (0.5)¹ × (0.5)^9 + 10C2 × (0.5)² × (0.5)^8 + 10C3(0.5)³(0.5)^7

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3 years ago

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Sergio039 [100]

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3 years ago