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ludmilkaskok [199]
3 years ago
14

Im to tierd to post this

Mathematics
1 answer:
Colt1911 [192]3 years ago
7 0

Answer:

keep trying until you succeed :)

Step-by-step explanation:

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Why don't we measure spread about the mean by simply averaging x − x , the deviations of individual data values from their mean?
skad [1K]

Answer:

Because this spread will add up to zero

Step-by-step explanation:

Mean defines the center of the data. Some values are below this center and some values are above this center.

For the values which are below the center (i.e. less than the mean), when mean is subtracted from these values, this results in negative numbers.

For the values which are above the center(i.e. greater than the mean), when mean is subtracted from these values, this results in positive numbers.

When these negative and positive numbers are summed together, as it is, they cancel out each other, leaving an answer equal to zero, which would be meaningless. As a spread of 0 would mean all data values are the same, when infact they aren't.

To avoid this, the difference of mean from the data value is squared, so that we can get all positive values, and then these values are added up together to calculate the spread of the data.

Conclusion:

The average of deviations of individual data from the mean will result in answer equal to zero, as a result they are squared first before finding the average.

7 0
3 years ago
B. The number of cats your teammates have as pets: 0, 1, 3,2
algol [13]

Ok so 1.2 is the answer you get if you divide them

and you can also say one because its counting by ones

7 0
3 years ago
Find AB<br> Round to the nearest tenth.
lianna [129]

Answer:4.1

Step-by-step explanation:

c=AB

C=26°

B=122°

b=8

Using sine rule

c/sinC = b/sinB

c/sin26=8/sin122

Sin26=0.4384

Sin122=0.8480

c/0.4384=8/0.8480

Cross multiply

c x 0.8480=8 x 0.4384

c x 0.8480=3.5072

Divide both sides by 0.8480

(c x 0.8480)/0.8480=3.5072/0.8480

c=4.1

7 0
3 years ago
What is the value of the expression below?<br> -4(5 - 10)' +36
Levart [38]

Answer:

20

Step-by-step explanation:

-4 x (-5) = 20

4 0
3 years ago
The solid figire shown consists of a cylinder and a cone​
mariarad [96]
Sorry
, their is no image attatched
8 0
3 years ago
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