The answer to your problem is -1x.
Answer:
($47.245; $61.575)
Step-by-step explanation:
Mean sample repair cost (X) = $54.41
Standard deviation (s) = $28.89
Sample size (n) =44
Z-score for a 90% confidence interval (z) = 1.645
The confidence interval, assuming a normal distribution, is given by:
Applying the given data, the lower (L) and upper (U) bounds of the interval are:
The confidence interval is I = ($47.245; $61.575)
<span>The relationship between sample size and sampling error is that t</span>he
smaller the sample size, the bigger the sample error percentage.
5000
First, let's determine how many standard deviations from the mean the value
(163+1) = 164 is:
(164 - 125)/15 = 39/15 = 2.6
Now using a standard normal table, look up 2.6 to determine the percentage of points that would be that far from the mean. I find a value of 0.49534. Note that is is a half value. So the percentage that will be higher than that will be 0.5 - 0.49534= 0.00466
Now multiply by the number of points overall, getting
0.00466 * 1000000 = 4660
So there will be approximately 5000 pixels brighter than 163 gray levels.
Answer:
A. Distance formula
Explanation:
Proving that two triangles are congruent by SSS means that we want to prove that each side in the first triangle is equal to its corresponding side in the second one.
The distance formula is the one to get you the side lengths.
Assume that we want to prove that triangle ABC is congruent to triangle DEF by SSS.
We will use the distance formula to get the lengths of:
AB
BC
AC
DE
EF
DF
Then, we will check the side length that we calculated, if we find that:
AB = DE
BC = EF
AC = DF
Then, the two triangles are congruent by SSS
Hope this helps :)
