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Andrews [41]
2 years ago
11

A sample is generated from a population of 20 items. Each of the 20 items are given a label, and a 20-sided die is rolled 3 time

s to determine which 3 items are in the sample. This is an example of a __________.
A. systematic sample
B. random sample
C. convenience sample
D. self-selecting sample
Mathematics
1 answer:
pochemuha2 years ago
3 0

Answer:

Option B, random sample

it should be the answer

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Round 1.6 to the nearest whole number
Elden [556K]

Answer:

The Answer is 2

Step-by-step explanation:

The rule is 4 or less let it rest. 5 or more raise the score.  6 is greater than 5 so you raise it to two

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I can’t figure this out I need the answer
fredd [130]

Answer:

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Step-by-step explanation:

For similar figures, side lengths (and any other linear measure) are proportional. Areas are proportional to the square of the scale factor for side lengths.

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  CD = 6(21/18)

  CD = 7 . . . cm

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2 years ago
The scatter plot shows the study times and test scores for a number of students. How long did the person who scored 81 study?
Free_Kalibri [48]

Answer: Option A

50 minutes

Step-by-step explanation:

Observe in the diagram that the vertical axis represents the score obtained and the horizontal axis represents the study time.

To find out how many hours the person with a score of 81 studied, locate the point that is at a vertical distance of 81.

Now draw a vertical line from this point to the horizontal axis. Note that the vertical line traced intercepts the vertical axis at x= 50

Then the person who got a score of 81 studied 50 minutes

The answer is the option A

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3 years ago
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Sloan [31]

Answer:

20

Step-by-step explanation:

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Step-by-step explanation:

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