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4 years ago

15

A card is drawn from a stands 52 card deck what is the probability that the card is a red card, or that it is a ten of clubs or

a jack of clubs A. 1/52 B. 3/26 C. 7/13 D. 15/26

1 answer:

marusya05 [52]4 years ago

5 0

Answer:

d. 15/26

Step-by-step explanation:

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If you divide the area from the length your answer is the height of the triangle.

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3 years ago

Given y inversely proportional to x and x = 3 for y = 4, what is x if y = 12?

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3 years ago

Read 2 more answers

A 98% confidence interval for the mean of a population is to be constructed and must be accurate to within 0.3 unit. A prelimina

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Answer:

$n = (\frac{2.326*1.7}{0.3})^2= 173.73$

And the value for n rounded up would be n = 174

Step-by-step explanation:

We have the following info given:

$s= 1.7$ previous estimation for the deviation

$ME=0.03$ the margin of error desired

$Conf =0.98$ represent the confidence

The Margin of error is given by:

$ME = z_{\alpha/2} \frac{\sigma}{\sqrt{n}}$

If we solve for the value of n we got:

$n= (\frac{z*\sigma}{ME})^2$

For this problem we know that the confidence is 98% so then the significance level would be $\alpha=0.02$ and the critical value would be:

$z_{\alpha/2}= 2.326$

And replacing we got:

$n = (\frac{2.326*1.7}{0.3})^2= 173.73$

And the value for n rounded up would be n = 174

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3 years ago

Calculate the area of each parallelogram in square centimeters I’m in a question it’s a shape where your supposed to count to 5

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Answer:

5 1/2

Step-by-step explanation:

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3 years ago

pantera1 [17]

Answer:

Step-by-step explanation:

-22

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3 years ago