What's the area of the above figure which has sides of length 6 and 8

Mathematics

2 answers:

Sunny_sXe [5.5K]2 years ago

6 0

Area of a rectangle is length times width. In the figure above, the length is 8 and the width is 6. So you just multiply 8 by 6 to get 48.

A = l x w
A = 8 x 6
A = 48

san4es73 [151]2 years ago

3 0

Area means times so wouldn’t it just be 6 times 8 which is 48?!

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Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

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The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

Since the Confidence is 0.94 or 94%, the value of $\alpha=0.06$ and $\alpha/2 =0.03$ , and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.03,0,1)".And we see that $z_{\alpha/2}=1.8808$