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3 years ago

9

You roll a number cube and flip a coin. What is the probability of rolling a number less than 5 and flipping heads? Write your a

nswer as a mixed number.

1 answer:

pickupchik [31]3 years ago

5 0

For the coin it would be 50%
for the cube it has six sides so it would be 1/6

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m = 10x - x

Combine like terms.

m = 9x

Divide both sides by 9.

x = m/9

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3 years ago

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Answer:

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Step-by-step explanation:

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3 0

3 years ago

-8x^2-3x+5+2x^2+7x-5

denis-greek [22]

-6x^2+4x

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3 years ago

Find the margin of error for a 90% confidence interval when the standard deviation is LaTeX: \sigma= 50????=50 and LaTeX: n = 25

Murrr4er [49]

Answer:

The margin of error for a 90% confidence interval is 16.4

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 25

Standard deviation = 50

$z_{critical}\text{ at}~\alpha_{0.10} = \pm 1.64$

Margin of error =

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Putting the values, we get,

$1.64\times \dfrac{50}{\sqrt{25}} = 16.4$

Thus, the margin of error for a 90% confidence interval is 16.4

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3 years ago