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alexira [117]
4 years ago
8

The null hypothesis for a chi-square contingency test of independence for two variables always assumes the variables are indepen

dent.
a. True
b. False
Mathematics
2 answers:
jonny [76]4 years ago
7 0
I would have to say false I learned about this today
Allisa [31]4 years ago
6 0
Im taking an educated guess and saying the answer is false

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Which of the following statements are true? Select all that apply.
nlexa [21]
1. <span>true
example:
2+3=3+2
5=5

2. </span><span>true
</span>example:
3*4=4*3
12=12
<span>
3. false
</span>example:
6-3=3-6
3≠-3
<span>
4. </span><span>true
</span>example:
(4 + 3) + 2= 4 + (3 + 2)
7 + 2 = 4 + 5
9 = 9
<span>
5. false
</span>example:<span>
(9 - 6) - 3 = 9 - (6 - 3)
</span>3 - 3 = 9 - 3
0 ≠ 6

6. true
example:
<span>2(3+4)= 2*3+2*4
2 * 7 = 6 + 8
14 = 14</span>
6 0
4 years ago
A new park was designed to contain two circular gardens. Garden A has a diameter of 50 m, and garden B has a diameter of 70 m. T
Nastasia [14]

Answer:

5,811.95\  m^2 of fabric.

Step-by-step explanation:

-The amount of fabric needed is equivalent to the  area of the two gardens.

-We calculate the combined areas as:

A=A_s+A_b\\\\=\pi r^2+\pi R^2\\\\=\pi(25^2+35^2)\\\\=1850\pi \ m^2\\\\=5811.95\ m^2

Hence, 5811.95 sq meters of fabric will be needed to cover the area of both gardens.

5 0
4 years ago
Which table could be used with Table A to verify that the function modeling Fahrenheit temperature, F(C), based on a given Celsi
AURORKA [14]

Answer:

A:

C -20 -15 -5

F(C)  -4 5 23

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Y=-2x+3???????????????????????
Ksju [112]

Answer:

Step-by-step explanation:

make y=0

0=-2x+3 (Switch the 3 sides)

-3=-2x (Divide everything by -2, cant have a negative x)

2/3=x or 0.66=x

7 0
3 years ago
36 ÷ 3^2 +4*2-1<br> can u help me get the answer?
spin [16.1K]
<span>36 ÷ 3^2 +4*2-1
</span>=36 ÷ 9 + 4*2-1<span>
=</span>4 + 8 - 1
= 11

USING PEMDAS
6 0
4 years ago
Read 2 more answers
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