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AVprozaik [17]
3 years ago
13

54:56

Mathematics
2 answers:
aivan3 [116]3 years ago
6 0

Answer:

String

2.

4

6

Percussion

5

10

15

Step-by-step explanation:

Eddi Din [679]3 years ago
6 0

Answer:

it is

Step-by-step explanation:

String

2

4

6

Percussion

1

2

3

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A study of voting chose 663 registered voters at random shortly after an election. Of these, 72% said they had voted in the elec
Bingel [31]

Answer:

c) 72% is a statistic and 56% is a parameter.

Step-by-step explanation:

Previous concepts

A statistic or sample statistic "is any quantity computed from values in a sample", for example the sample mean, sample proportion and standard deviation

A parameter is "any numerical quantity that characterizes a given population or some aspect of it".

Solution to the problem

For this case we know that they select a sample of 663 registered voters and the sample proportion from these registered voters is:

\hat p = 0.72 representing the sample proportion of people who voted in the election

They info that they have is that the true proportion before is p =0.52 and that represent a value related to the population.

So on this case the 0.72 represent a statistic since represent the sample and the 0.52 is a value who represent the population for this case is a parameter.

So the correct option is:

c) 72% is a statistic and 56% is a parameter.

8 0
3 years ago
3x+2y= -19 solve by elimination of addition<br> -3x-5y= 25
tensa zangetsu [6.8K]

Answer:

x=-5, y=-2

Step-by-step explanation:

3x+2y= -19  

-3x-5y= 25

Add the two equations together

3x+2y= -19  

-3x-5y= 25

------------------

0x -3y = 6

Divide each side by -3

-3y/-3 = 6/-3

y = -2

Now find x

3x+2y = -19

3x +2(-2) =-19

3x-4 = -19

Add 4 to each side

3x -4+4 = -19+4

3x= -15

divide by 3

3x/3 = -15/3

x = -5

8 0
2 years ago
Read 2 more answers
Find Value of X<br><br> 88<br><br><br> 82<br><br><br> 76<br><br><br> 94
morpeh [17]
I think it is 88 not sure though
7 0
3 years ago
Read 2 more answers
Help I can’t solve this at all
qwelly [4]
<h2>Answer: </h2>

We know that,

  • Length of arc = 2πrθ/360

Length of arc = 2 × 3.14 × 6 × 45/360

Length of arc = 6.28 × 3/4

= 18.84/4

= 4.71units.

8 0
2 years ago
(d) Jim walks three miles in 45 minutes. How long does it take for him to walk 5 miles?​
kramer

Answer:

  • 5 miles = 75 minutes

Step-by-step explanation:

<u>We know that:</u>

  • 3 miles = 45 minutes

<u>Solution:</u>

  • 3 miles = 45 minutes
  • => 1 mile = 45/3 minutes
  • => 5 miles = 45/3 x 5
  • => 5 miles = 15 x 5
  • => 5 miles = 75 minutes

Hence, it takes 75 minutes for Jim to walk 5 miles.

6 0
2 years ago
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