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3 years ago

Match the definition with the terms.

2 answers:

8 0

1.
1) "sample" / (a portion of a large group) ;
_____________________________________
2. "random sample" / (choosing a sample so that every member has an equal chance of being chosen).
_______________________________________________________
3. "biased sample" /
(choosing a sample from people who are under 15 years old).
_______________________________________________________
4. "estimating from a sample"/
(using the responses of a small group to make conclusions about the large group).
___________________________________________________

AveGali [126]3 years ago

5 0

Random sample - choosing a sample so that every member has an equal chance of being chosen (this is the absolute definition of random sampling)

Sample - a portion of a large group is termed as a sample.

Biased sample - choosing a sample from people who are under 15 years old (biased sampling states that all the members of a group are not included in survey)

Estimating from a sample - using the responses of a small group to make conclusions about the large group.(estimation means roughly judging something based on some sample )

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Angle Sum Theorem. y = ?

salantis [7]

Answer:

90°

Step-by-step explanation:

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The whole large triangle has angles 60 60 60 ( they sum to 180)

that means x = 30

then the small triangle on the right has 60 + 30 + y = 180

meaning y = 90 °

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1 year ago

If you have 8 bagels and they cost 14.89 what’s the unit rate

barxatty [35]

14.89/8

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3 years ago

The table shows the ratio of caramel corn to cheddar corn in a bag. What is the constant of proportionality?

Anit [1.1K]

For proportionality constant problems, set up the equation as,

$x=Ky$ ,

Where x and y are the two variables you are comparing and K is the proportionality constant. If we take Caramel Corn values as x and Cheddar Corn values as y, and then solve for K for each ratio lines, we will get the same answer. Let's check.

$15=K(10)\\K=\frac{15}{10}= \frac{3}{2}$ ,

$30=K(20)\\K=\frac{30}{20}= \frac{3}{2}$ , and

$45=K(30)\\K=\frac{45}{30}= \frac{3}{2}$ .

Hence, the proportionality constant, in this case K, is equal to $\frac{3}{2}$ or 1.5. First answer choice is correct.

ANSWER: 1.5

4 0

3 years ago

Read 2 more answers

If the discriminant of a quadratic equation is positive, which of the following is true of the equation?

Yanka [14]

For this case suppose that we have a quadratic equation of the form:
$ax ^ 2 + bx + c
$
The solution to the quadratic recuacion is given by:
$x = \frac{-b +/- \sqrt{b^2 - 4ac}}{2a}$
Where,
The discriminant is:
$b ^ 2 - 4ac
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Answer:
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3 years ago

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What is the equation for a long passing through the points (-2,-2) and (2,-4)

MariettaO [177]

Answer:

y = -1/2x + -3

Step-by-step explanation:

it would take too long to explain

i'm 99.99% sure this is right

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3 years ago