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Scilla [17]
3 years ago
15

The chart below shows the distribution of the number of books in a library.

Mathematics
1 answer:
Murljashka [212]3 years ago
5 0

Answer:

Yes, it is representative because each type of book was represented in the approximate proportion that exists in the library.

Step-by-step explanation:

Given is a chart, showing the distribution of the number of books in a library.

Also given that Sahira chooses a random sample from the library and records the type of books in the chart below.

Sahira's sample can be said to be representative because given that books are taken at random.  So just because literacy books were more we cannot say it is not representative  II option is not right, because each book was not chosen uniquely, just random books were drawn

Lastly The Answer is C) Yes, it is representative because each type of book was represented in the approximate proportion that exists in the library is right, because each book selected represents the sample from population of full library books.

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The answer to math problem
Degger [83]

<em>First, you would multiply 2 x 16. </em>

2 x 16 = 32

<em>Using that number, subtract by 8. </em>

32 - 8 = 24

<em>Multiply 3 x 16. </em>

3 x 16 = 48

<em>Subtract the two numbers from step 2 and 3. </em>

48 - 24 = 24


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3 years ago
At middle school 6 7 and 8 the student government wants to determine the theme for 8th grade dance. Who should they sample?
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After standardizing a NaOH solution, you use it to titrate an HCl solution known to have a concentration of 0.205 M. You perform
Gnoma [55]

Answer:

The right answer is:

(a) 0.205

(b) 0.005425

Step-by-step explanation:

The given data is:

0.213, 0.204, 0.208, 0.200, and 0.198

(a)

The mean will be:

= \frac{Sum \ of \ all \ data}{No. \ of \ data}

= \frac{0.213+ 0.204+ 0.208+ 0.200+0.198}{5}

= \frac{1.023}{5}

= 0.2046

or,

= 0.205

(b)

The standard deviation will be:

\sigma^2=\Sigma\frac{(x_i-\mu)^2}{N}

    =\frac{(0.213-0.2046)^2+...+(0.198-0.2046)^2}{5}

    =\frac{0.0001472}{5}

    =2.994\times 10^{-5}

or,

    =0.005425

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3 years ago
If the area of the vegetable garden is 170 square feet, which equation could be used to find the length of the tomato patch?
lara [203]

Answer:

b is the answer because you divide it by 10

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3 years ago
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Answer:

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Step-by-step explanation:

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