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3 years ago

Complete ratio for the brain thingy

Mathematics

1 answer:

REY [17]3 years ago

7 0

Answers
20,16
75,60
2.5,2

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Please help! 37. A and B

Volgvan

Answer:

Step-by-step explanation:

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2 years ago

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Please help me compute standard deviation! Here is the problem, as written.

aleksandr82 [10.1K]

Answer:

The standard deviation for the income of super shoppers is 76.12.

Step-by-step explanation:

The formula to compute the standard deviation for the grouped data probability distribution is:

$\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}$

Here,

<em>x</em> = midpoints

$\mu=\sum x\cdot P(x)$

Consider the Excel table attached below.

The mean is:

$\mu=\sum x\cdot P(x)=32.3$

Compute the standard deviation as follows:

$\sigma=\sqrt{\sum [(x-\mu)^{2}\cdot P(x)]}$

$=\sqrt{259.71}\\\\=76.1155204\\\\\approx 76.12$

Thus, the standard deviation for the income of super shoppers is 76.12.

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3 years ago

Caitlin has cut out a square piece of graph paper that contains a total of 81 blocks.How many blocks are there along one side of

FinnZ [79.3K]

Answer:

9 squares on each side of the square.

Step-by-step explanation:

$\sqrt{81}=\sqrt{9\times 9}=\sqrt{9^2}=9$

There are 9 equally sized blocks on one side of square piece of graph paper.

Best Regards!

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2 years ago

What is 77 percent as a fraction in simplest form

natka813 [3]

In order to take a percentage and change it to a fraction we have to place 77 over 100 because it's a whole number.

So, your fraction is 77/100 in simplest form because nothing goes into both equally.

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2 years ago

List all the factors of 39 from least to greatest.<br> onarato gach factor

Elan Coil [88]

Answer:

(1 x 39) (3 x 13) (13 x 3) (39 x 1)

Step-by-step explanation:

those are all the factors

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2 years ago

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