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ikadub [295]
2 years ago
15

Suggest a fundamentally and conceptually different way that is always under the control of the researcher of making the margin o

f error smaller.
Mathematics
1 answer:
SVEN [57.7K]2 years ago
3 0

Step-by-step explanation:

First, we may wonder, what does the term <em>margin of error</em> mean? Put simply, the margin of error is a measure of the degree to which research results do not reflect the views of the total studied population. In other words, it tells readers how much confidence they should have in the results presented.

It has often been suggested that a fundamentally and conceptually effective way that is always under the control of the researcher of making the margin of error smaller is to<em> increase the sample size</em> of the research. This basically involves collecting more sample data which thus leads to a closer estimate of the view of the entire population.

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Find the Surface Area. I need the answer fast.
murzikaleks [220]

Answer:

1615

Step-by-step explanation:

Area of triangle is: A= B•H•1/2

Area of square is A= L•W

39•17•1/2= 331.5

331.5•4= 1326

17•17= 289

Add the square area to the area of the triangles

289+ 1326= 1615

hope this helps chu <3

8 0
3 years ago
Read 2 more answers
Find arc DC pls I’m stuck on this problem
stepan [7]

Answer:

m\overset{\Large\frown}{ABC} \: = \: 196°

8 0
2 years ago
Y = 2/3 x -3 y = -3/2 x +2 what statement about the lines are true
Hoochie [10]

Answer:

The product of the slopes of lines is -1.

i.e. m₁ × m₂ = -1

Thus, the lines are perpendicular.

Step-by-step explanation:

The slope-intercept form of the line equation

y = mx+b

where

  • m is the slope
  • b is the y-intercept

Given the lines

y = 2/3 x -3       --- Line 1

y = -3/2x +2      --- Line 2

<u>The slope of line 1</u>

y = 2/3 x -3       --- Line 1

By comparing with the slope-intercept form of the line equation

The slope of line 1 is: m₁ = 2/3

<u>The slope of line 2</u>

y = -3/2x +2      --- Line 2

By comparing with the slope-intercept y = mx+b form of the line equation

The slope of line 2 is: m₂ = -3/2

We know that when two lines are perpendicular, the product of their slopes is -1.

Let us check the product of two slopes m₁ and m₂

m₁ × m₂ = (2/3)(-3/2 )

m₁ × m₂ = -1

Thus, the product of the slopes of lines is -1.

i.e. m₁ × m₂ = -1

Thus, the lines are perpendicular.

7 0
2 years ago
Shalika bought a purse for $120. The tax rate is 9%.  What is the total amount Shalika paid? Enter your answer in the box.
ad-work [718]
130.80 is the answer you have to multiply 120 times 1.09
5 0
3 years ago
Read 2 more answers
Can someone please help me solve the following? 2-(-2)³+(-4/2)³
Tcecarenko [31]

Answer:

BPEMDAS (brackets, parentheses, exponents, multiplication and division, addition and subtraction)- Left to right

Notes: Two negatives make a positive. When you have an odd exponent of an negative number, you get a negactive result.

2-(-8)+(-2)³

10-8

2

Hope this makes sense! :)

7 0
2 years ago
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