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vodomira [7]
3 years ago
5

A tester sets 99% confidence limits on a certain statistic. The absolute difference between either limit and the mean is an exam

ple of:
Mathematics
2 answers:
Marta_Voda [28]3 years ago
5 0

Answer:

Margin of error.

Step-by-step explanation:

Given that a tester sets 99% confiidence limits on a certain statistic

A confidence limit for 99% is obtained as

lower bound of confidence interval as Mean - critical 99% *std error and

upper bound of confidence interval as Mean + critical 99% * std error

Thus a confidence interval would be in interval form with lower limit and upper limit and the average of these two limits is the mean.

The absolute difference between either limit and the mean is the value

Critical value for 99% multiplied by Std error of the variable

= Margin of error

Hence answer is margin of error

solmaris [256]3 years ago
3 0
I found the missing choices:
<span>the standard deviation
the margin of error
the variance
the population mean
</span>
<span>The absolute difference between either limit and the mean is an example of THE VARIANCE.

Variance is defined as the</span><span> average of the </span>squared<span> differences from the Mean. </span>
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anzhelika [568]
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4 0
3 years ago
Plz answer both questions 15 points
anyanavicka [17]

Answer:

If the signs of rational numbers are same, then the answer is positive.

If the signs of rational numbers are different, then the answer is negative.

Step-by-step explanation:

Consider the provided information.

A: When multiplying or dividing rational numbers, when will the answer be positive?

If we are multiplying or dividing rational numbers the answer will be positive if and only if both the rational numbers have same sign.

For example: Multiply 2 and 4.

2×4=8              (same sign)

or

Multiply -2 and -4.

-2×-4=8         (same sign)

8 is a positive rational number.

Now divided 2 and 4.

\frac{2}{4} =\frac{1}{2}    

or

Divided -2 and -4.

\frac{-2}{-4} =\frac{1}{2}

1/2 is a positive rational number.

Hence, If the signs of rational numbers are same, then the answer is positive.

B: When multiplying or dividing rational numbers, when will the answer be negative?

If we are multiplying or dividing rational numbers the answer will be negative if and only if both the rational numbers have different sign.

For example: Multiply 2 and -4.

2×-4=-8              (different sign)

or

Multiply -2 and 4.

-2×4=-8             (different sign)

-8 is a negative rational number.

Now divided 2 and -4.

\frac{2}{-4} =-\frac{1}{2}

or

Divided -2 and 4.

\frac{-2}{4} =-\frac{1}{2}

-1/2 is a negative rational number

Hence,  If the signs of rational numbers are different, then the answer is negative.

3 0
3 years ago
PLEASE HELP I WILL MARK BRAINLIEST
vichka [17]

Answer:

Zero

Step-by-step explanation:

The formula for slope is y2-y1 over x2-x1

y2=second y point

y1=first y point

x2=second x point

x1=first x point

1 - 1

___

-3-5

0/-8

Since the number on top is zero the slope would be also. If the zero was on the bottom the slope would be undefined.

5 0
3 years ago
Read 2 more answers
The measure of each of the base angles of an isosceles triangle is 9° less than 4 times the measure of the vertex angle. Plz exp
valentinak56 [21]
Isocoleese means that 2 sides are the same legnth
that also means that 2 angles are the same legnth
so represent the angles as x,y,z
the vertex is the different angle
lets says that x=y because they are the 2 same angle and z=vertex
so just do
the angles measure x,x,z because x=y
so
base angle=x=y
remember that all 3 inside angles added together equals 180 so
x+y+z=180 or x+x+z=180
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measure of each of the base angles of the isosolese triangle is 9 les than 4 times the vertex
that means that x is 9 less than 4 times z or x=-9+4z or x=4z-9
so we have the other equation
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4z-9+4z-9+z=180
group like terms
4z+4z+z-9-9=180
add like terms
9z-18=180
add 18 to both sides
9z=198
divide both sides by 9
z=22
subsitute
x=4z-9
x=4(22)-9
x=88-9
x=79

x=y=79


the angles are
base angles=79 degrees
vertex=22 degrees


x=79
y=79
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bonufazy [111]

Answer:

17/22

Step-by-step explanation:

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4 0
3 years ago
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