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3 years ago

If x = 4, y = 2 and z = 1 then xz (4y - 2z) is: 861, 24, 46, or 40. Help please.

Mathematics

1 answer:

dybincka [34]3 years ago

8 0

(4)(1) * (4(2)-2(1))
4 * (8-2)
4*6
24

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3 years ago

Consider a binomial distribution of 200 trials with expected value 80 and standard deviation of about 6.9. Use the criterion tha

mote1985 [20]

Answer:

The correct answer is option 'a' : 120 is more than 2.5 standard deviations above the expected value.

Step-by-step explanation:

For an exponential distribution we have

The expected value μ = 80

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Thus we have

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The deviation is related to expected value and probability as

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Thus the values between the given deviation is

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Now since 120 successes are out of the range of [62.75,97.25] thus 120 is more than the expected value.

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3 years ago

A soap factory randomly inspects 100 bars of soap to better identify problems that occur during the manufacturing

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3 years ago

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Sin (x/2)= √2- sin (x/2) solve for the exact solutions in the interval (0, 2π)

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2 years ago

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