Answer:
<h2>Brainleist!</h2>
Step-by-step explanation:
<h2><em><u>
x^2-2x+1</u></em></h2>
<em><u></u></em>
thats the answer...
just: Expand the polynomial using the FOIL method.
Answer:
78.5 (please put brainliest)
Step-by-step explanation:
r = diameter / 2 = 5
area = π * r^2 = 25 * 3.14 = 78.5
Step-by-step explanation:
B. Yes, we are 99% confident that the population mean is within the interval.
C. Yes, 225 is below the interval minimum, so it is reasonable to conclude the average cholesterol level is greater than 225 mg/dl.
D. No. Increasing the sample size would decrease the margin of error, so the ends of the interval would move closer to the sample mean of 251.9. So the interval minimum would still be higher than 225.
Answer:
A word describes a verb.
Step-by-step explanation:
An adverb is a word that describes a verb. For example, he ran quickly. Here, quickly is the adverb because it is describing how he ran.
Answer:
Step-by-step explanation:
For this case we can define the random variable of interest as: "The nicotine content in a single cigarette " and for this case we know the following parameters:
And for this case we select a sample size of n =100 and we want to find the following probability:
And for this case we can use the z score formula given by:
And replacing we got:
And we can find the required probability with the normal standard table and we got:
