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2 years ago

A sample in which every person in the population being studied has an equal chance of inclusion is called a _____ sample.

1 answer:

8 0

A sample in which every person in the population being studied has an equal chance of inclusion is called a random sample. It is a subset of a statistical population. Each member of the division or portion has an equal probability of being chosen.

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Which relation is a function of x?

Yakvenalex [24]

Answer: Option 4

Step-by-step explanation:

Each value of x maps onto only one value of y.

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2 years ago

Which point is the reflection of point E across the y-axis what are it’s coordinates ??

Anuta_ua [19.1K]

Answer:

Point J is the reflection, and the coordinates are (0,-2)

Step-by-step explanation:

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2 years ago

Read 2 more answers

Natalie saved $20 when she purchased a new phone. The phone originally cost $125. What percent savings did Natalie receive on th

Free_Kalibri [48]

15% I think, I’m pretty sure I’m right

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3 years ago

After taking a 70 point test, a student guesses that he got 65 points correct. Later he finds out he got 67 points

Nataliya [291]

Answer:

Percent error = 4.29%

Step-by-step explanation:

Percent error can be defined as a measure of the extent to which an experimental value differs from the theoretical value.

Mathematically, it is given by this expression;

$Percent \; error = \frac {experimental \;value - theoretical \; value}{ theoretical \;value} *100$

Given the following data;

Experimental value = 67

Theoretical value = 70

Substituting into the equation, we have;

$Percent \; error = \frac {67 - 70 }{ 70} *100$

$Percent \; error = \frac {3}{70} *100$

$Percent \; error = 0.04286 *100$

Percent error = 4.29%

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2 years ago

Which method is valid for proving that two circles are similar?

tatuchka [14]

'a', 'c', and 'd' are true for any two circles. That's because
ALL circles are similar. You don't need to prove it. The question
is weird.

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3 years ago