<span>1.) The most important thing that must be true about a sample so that you can make a valid inference about the population is that the sample must not be biased.
2.) </span>I<span>t is important to take a random sample of the population you want to study because the population may be too large that it might be impossible or too expensive to conduct a survey on a population.
3.) </span><span>An outlier is an observation point that is distant from other observations. It can be too small or too big compared to other observations.</span>
The measure of center that is more affected by outliers in the data is the mean, because since the mean is obtained by the sum of the data divided by the number of the data set. Any 'too big' number or 'too small' number will affect the sum of the data set.
4.) Given that <span>Sam
conducted a survey to find out the favorite weekend activity of the
students his middle school. He asked 20 of his classmates. He found out
that the favorite weekend activity of his middle school is playing
video games because 75% of the students he surveyed liked to play video
games.
</span><span>Sam’s sample may not be valid because he drew a sample only from his class to make an inference about the entire middle school students.
</span>For <span>Sam to improve his survey to be more representative of his school he must draw a random sample from all the classes that make up the middle school.</span>
Yes. A monomial is a term composed by a coefficient and powers of variables multiplied with each other, for example
is a monomial.
In your case, the monomials are
As the name suggests, a trinomial is the sum of three monomials, which is exactly your case.
Answer:
x=-14 and x=-1
Step-by-step explanation:
x+6=-7 x-6=-7
x=-14 x=-1
Answer:
(7, -4.5)
Step-by-step explanation:
25−x=−4y ---> x=25+4y
3x−2y=30
use x to substitute into the second equation
3 (25+4y)-2y = 30
75+12y-2y=30
75+10y=30
10y=-45
y=-4.5
3x-2(-4.5)=30
3x+9=30
3x=21
x=7
check:
25-7=-4*-4.5
18=18 (yes)
3*7-2*-4.5=30
21+9=30
30=30 (yes)
The adequate intake (AI) for potassium is 4,700 mg in healthy individuals, but unfortunately, most people don’t get enough potassium through their diets. one medium-sized banana typically containing 422 mg. One half of an avocado (100 grams) contains 487 mg of potassium. One cup (156 grams) of frozen spinach contains 540 mg of potassium. One medium-sized sweet potato contains 541 mg of potassium. Just two wedges of watermelon (about 1/8 of a melon or 572 grams) will give you 640 mg of potassium. Three tablespoons of tomato paste or about 50 grams contain 486 mg of potassium. Pomegranates are fantastic source of potassium, as one fruit can bestow 666 mg. One potato can provide 515 mg of potassium.
I hope it helps
