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Finger [1]
3 years ago
13

Means and SDs. For each part, compare distributions (1) and (2) based on their means and standard deviations. You do not need to

calculate these statistics; simply state how the means and the standard deviations compare.
A)


1) 3, 5, 5, 5, 8, 11, 11, 11, 132) 3, 5, 5, 5, 8, 11, 11, 11, 20B)1) -20, 0, 0,0,15, 25, 30, 302) -40, 0,0, 0,15, 25, 30,30


C)


1) 0,2,4,6,8,10


2) 20, 22, 24, 26, 28, 30


D)


1) 100, 200, 300, 400, 500


2) 0, 50, 300, 550, 600
Mathematics
1 answer:
jarptica [38.1K]3 years ago
8 0

Answer:

hfiwadhcase9iskoalsuhc;AJDSLASHDOIAWNHEOJOSED

Step-by-step explanation:

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2.8 -3x =12.1 −6x what's x
Kipish [7]
X= 3.1 is the answer
6 0
3 years ago
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Jenny's height decreased by 14 is 46. use the variable j to represent jenny's height.
alina1380 [7]

Answer:

J-14=46

Step-by-step explanation:

Since j is Jenny's height which is decreased by 14

J-14

Now J-14 is 46

J-14=46

3 0
3 years ago
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Question 2 of 8
Setler [38]

Answer: 17 \div 2

Step-by-step explanation:

a/b is the same thing as a \div b

8 0
2 years ago
et f(x) = x + |2x − 3|. Find all solutions to the equation f(x) = 12. (Enter your answers as a comma-separated list. If an answe
Alinara [238K]

Answer:

1. {5,-9}

2.{4}

3.{9/2}

Step-by-step explanation:

The equation f(x)=x+\lvert 2x-3 \rvert=12 can be solved as follows:

x+\lvert 2x-3 \rvert =12\,\,\,\text{(given equation)}

\lvert 2x-3 \rvert =12-x

2x-3=12-x\,\,\text{or}\,\,2x-3=-(12-x)

3x=15\,\,\text{or}\,\,\x=-9

Then, the solutions of the equation are x=5, x=-9.

Now, if g(x)=5x-3+\lvert x+4\rvert, we can solve the equation g(a)=4a+9 as follows:

5a-3+\lvert a+4 \rvert =4a+9

\lvert a+4\rvert =4a+9-5a+3

a+4 =-a+12\,\,\text{or}\,\,a+4=-(-a+12)

2a=8\,\,\text{or}\,\,4=12

So, the unique solution of this last equation is a=4

The last equation is h(x-1)=x-3, where h(x)=\lvert x \rvert -2x+5.. To solve this equation we can proceed as follows:

h(x-1)=x-3

\lvert x-1\rvert -2(x-1)+5=x-3

\lvert x-1 \rvert -2x+2+5=x-3

\lvert x-1\rvert =3x-10

x-1=3x-10\,\,\text{or}\,\,x-1=-(3x-10)

-2x=-9\,\,\text{or}\,\,4x=11

x=9/2\,\,\text{or}\,\,x=11/4

But, x=11/4 is not a solution of this equation. So the unique solution is x=9/2.

8 0
3 years ago
Only answer this if you have an explanation and if you know what the answer is ( NO LINKS! )
baherus [9]

Answer:

A=300

Step-by-step explanation:

995-165=830

830+795=1625

1625-1200=425

425-125=300

6 0
3 years ago
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