Give a quick estimate of the area of a rectangle with length 114 in. And width 92 in. ?

1 answer:

7 0

An estimation is made by slightly rounding the numbers, then multiplying , adding, subtracting, or dividing.
In this case , to make an estimate, I would round 114 to 100, and 92 to 90... 100 x 90 = 9,000 sq in
You can of course round closer than that, depending on how accurate you want it to be, but the exact answer is 10,488, Wich you can round to 10,000 or 10,500
Hope this helped :)

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erastova [34]

Answer:

The distribution of X is normal

$P(X < 1.4) = 0.12654$

$P(X > 3.5) = 0.36051$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 3 \ hours$

The standard deviation is $\sigma = 1.4 \ hours$

Generally given from the question that the amount of time spent alone by the population size is normally distributed then then the distribution of X (i.e the amount of time spent by the sample size (the one Mercurian)) will be normally distributed

Generally the probability that the child spend less than one hour in a day is mathematically represented as

$P(X < 1.4) = P(\frac{X - \mu}{\sigma} < \frac{1.4 - \mu}{\sigma} )$