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sattari [20]
1 year ago
9

when is the population standard deviation greater than the population variance? a. when the variance is less than 1 b. when the

variance is greater than 1 c. when the variance is negative d. the standard deviation is never greater than the variance.
Mathematics
1 answer:
LenKa [72]1 year ago
7 0

The population standard deviation is greater than the population variance when A. when the variance is less than 1

<h3>What is standard of deviation?</h3>

A population's standard deviation is calculated by taking the square root of the data set's variance. It is employed to compute a confidence interval for making judgments (such as accepting or rejecting a hypothesis). Sample standard deviation is a slightly more complicated computation.

Variability is measured by the variance. The average of the squared deviations from the mean is used to calculate it. Variance tells you the degree of spread in your data set. The variance is greater in respect to the mean when the data are more dispersed.

Learn more about variance on:

brainly.com/question/15858152

#SPJ1

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Solve the following system of equations. {y=−2x−92x+3y=−3 Write your answer as an ordered pair in the form (x,y).
Over [174]

Answer:

  (x, y) = (-6, 3)

Step-by-step explanation:

Maybe you want to solve ...

  • y = -2x -9
  • 2x +3y = -3

Use the first equation to substitute for y in the second:

  2x +3(-2x -9) = -3

  2x -6x -27 = -3

  -4x = 24 . . . . . . . . . add 27, simplify

  x = -6 . . . . . . . . . . . divide by -4

  y = -2(-6) -9 = 12 -9 = 3

The solution is (x, y) = (-6, 3).

6 0
3 years ago
Find the Total surface area of a cone if it's slant height is 21m and diameter of it's base is 24m.
kherson [118]
<h3><u>Answer :- </u></h3>

  • The total surfAce area of cone is <u>1244.57m².</u>

<h3><u>Step-by-step</u><u> </u><u>explanation</u><u> </u><u>:</u><u>-</u><u> </u></h3>

<u>To </u><u>find </u><u>:</u><u>-</u><u> </u>

  • The total surface area of cone..

<h3><u>Solution :- </u></h3>

Given that ,

  • The slant height of the cone = 21m.
  • Diameter of it's base = 24m.

<h3><u>♦</u><u> </u><u>Radius is </u></h3>

<u>=</u>> Diameter / 2

=> 24 / 2

=> 12m

<h3>As we know that , </h3>

<u>Total surface area of cone = πr ( r + L ) .</u>

<h3><u>Where</u><u> </u><u>we </u><u>know</u><u>,</u></h3>

  • π = 22/7
  • r = Radius ( radii )..
  • L = Slant height.

<h3>According to the question :- </h3>

The total surface of cone is,

<u>=> Total surface area = πr { r + L } ..</u>

=  \frac{22}{7}  \times 12 \times (12 + 21)

=  \frac{22}{7}  \times 12 \times 33

= (22 \times 12 \times 33) \div 7

= (726 \times 12) \div 7

= 8712 \div 7

= 1244.57 {m}^{2}

• Therefore , The total surface area of cone is <u>1244.57m².</u>

Hope this helps you :)

8 0
2 years ago
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Sav [38]

Give me brainless cuz I according to me it's 24

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3 years ago
PLEASE HELP AND EXPLAIN
nadezda [96]

I have never see this in my. Life

5 0
3 years ago
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1:2=n:9. Can someone show me the answer
Dahasolnce [82]

Answer:

n = 4.5

Step-by-step explanation:

1              n

------= ------------

2            9

using cross products

1 * 9 = 2 * n

divide each side by 2

9/2 = 2n/2

9/2 = n

n = 4.5

6 0
3 years ago
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