3 years ago

PLZZZZZZZZZZZZZ HELP I NEED HELP QUICK :(

Mathematics

1 answer:

QveST [7]3 years ago

7 0

Step-by-step explanation:

it's gonna either be B or D

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Do you still need help with it I can help you?

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2 years ago

In an inductive generalization, in order to achieve an error margin of plus or minus 3 percentage points at a confidence level o

ANTONII [103]

Let n = required random sample size.

Assume that the population standard deviation is known as σ.
Let m = sample mean.
At the 95% confidence level, the expected range is
(m - k(σ/√n), m + k(σ/√n))
where k = 1.96.

Therefore the error margin is 1.96(σ/√n).
Because the error margin is specified as 3% or 0.03, therefore
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Answer:
Smallest sample size = 128.05σ², where σ = population standard deviation.

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3 years ago

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wolverine [178]

Answer:

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Step-by-step explanation:

absolute value is just the number disregarding whether it's positive or negative, and the only even number less than -12 that is still under -15 is -14

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3 years ago

Your brother travelled 117 miles in 2,25 hours to come home for school work. What's the average speed that he was traveling?

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3 years ago

Cuantos yenes se pueden comprar con 200 pesos mx ? si los yenes cuestan 0.178 centavos ayuda rapido

Sergeeva-Olga [200]

Usando proporciones, hay que con 200 pesos mx se pueden comprar 0.0645 yenes.

<h3>¿Qué es una proporción?</h3>

Una proporción es una fracción de la cantidad total, y puede ser encontrada por intermedio de una regla de tres.