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leva [86]
3 years ago
15

Write down the total and the mean for each of the sets below. a 4, 6, 8, 10 and 12

Mathematics
1 answer:
3241004551 [841]3 years ago
6 0
Mean if data 40/5 = 8 she is corrrect
You might be interested in
Decide if each answer will be less than or greater than the original number. Drag each to the correct category
enot [183]

That's a question about percentage.

Let's imagine that we want to know how much is 90% of 200. To do this calculation, we should multiply 200 by 90 and then divide the result by 100. We do that because 90% is the same thing that \frac{90}{100} =0,9. So, 90% of 200 is equal to:

\frac{200\cdot90}{100} =\\\\\frac{18000}{100} =\\\\180

Now, imagine that you would like to know how much is 100% of 999. First, we multiply 999 by 100 and divide the result by 999. So, 100% of a number is equal to itself. That's a very important information, because it's possible to understand this:

  • If the percentage is less than 100%, the result is less than original number.
  • If the percentage is equal to 100%, the result is equal to the original number.
  • If the percentage is greater than 100%, the result is greater than original number.

Now, we can solve our problem! \o/

The options that the percentage is less than 100% are: 35% of 300, 62% of 182 and 89% of 525. Therefore, their answers will be less than the original number.

And, the option that the percentage is greater than 100% are: 250% of 18, 300% of 250 and 120% of 72. So, their answers will be greater than the original number.

On the image, you can see the answer in a table.

I hope I've helped. ^^

Enjoy your studies! \o/

7 0
3 years ago
What is the value of 4 over 10 plus 3 over 100?
Allisa [31]
43 over 100
4/10 is 40/100. 40/100 plus 3/100 is 43/100
3 0
3 years ago
Read 2 more answers
What is the equivalent fraction
IgorC [24]

Answer:

4/9

Step-by-step explanation:

Notice the repeating symbol on top of the 0.4, so instead of 4/10, it would be 0.44444, which is 4/9 if you turn it into a fraction.

5 0
4 years ago
Read 2 more answers
Anyone can y’all help me. What’s the mistake in this? And what’s N actually equal to?
PSYCHO15rus [73]

Answer:

n = -1

Step-by-step explanation:

you've accidently substracted 6n from 12n when you were supposed to be adding them. (-6n becomes +6n when brought to the otherside of the equal sign)

4 0
3 years ago
Assume that the readings on the thermometers are normally distributed with a mean of 0 degrees0° and standard deviation of 1.00d
Alex

Answer:

The diagram is attached below.

Step-by-step explanation:

A normal distribution mean 0 and standard deviation 1 is known as the standard normal distribution.

So, the readings on the thermometers (denoted by <em>Z</em>) follows N (0, 1).

It is provided that 2.7​% of the thermometers are rejected because they have readings that are too high and 2.7​% are rejected because they have readings that are too low.

This implies that:

P(Zz)=0.027

The value of <em>z</em> associated to both these probabilities are:

<em>z</em> = 1.93.

That is,

P(Z1.93)=0.027

*Use a <em>z</em>-table.

The diagram for the two readings that are cutoff values separating the rejected thermometers from the others is attached below.

6 0
4 years ago
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