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ivann1987 [24]
3 years ago
10

Help me plz I don't understand !!!!!!!

Mathematics
2 answers:
Aloiza [94]3 years ago
8 0
The answer is D you put 10/5 then simplify
marysya [2.9K]3 years ago
4 0

the constant would be 8  

plzz give me a brainlyest

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Compute the standard deviation for the set of data.<br><br> 13.3, 14.3, 15.3, 16.3, 17.3
Gennadij [26K]
<h3>Answer: Choice A)  sqrt(2)</h3>

==========================================

Explanation:

Add up all of the values

13.3+14.3+15.3+16.3+17.3 = 76.5

Then divide by 5 as there are n = 5 values in the set given

76.5/5 = 15.3

The mean of this data set is 15.3

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

Subtract the mean from each value to get this list of differences

x1 - mean = 13.3 - 15.3 = -2

x2 - mean = 14.3 - 15.3 = -1

x3 - mean = 15.3 - 15.3 = 0

x4 - mean = 16.3 - 15.3 = 1

x5 - mean = 17.3 - 15.3 = 2

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

Square each result from the previous section

(-2)^2 = 4

(-1)^2 = 1

(0)^2 = 0

(1)^2 = 1

(2)^2 = 4

Then add up those results

4+1+0+1+4 = 10

This is the sum of the squared differences.

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

Divide the sum of the squared differences by n = 5 to get 10/5 = 2

The population variance is 2

The population standard deviation is the square root of this, so we get sqrt(2) as our final answer.

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

Side note: This data set was fairly small, so computing the standard deviation by hand wasnt too painful. When it comes to larger data sets, it is smarter to use a spreadsheet program to easily calculate the answer. The drawback is that you wont be able to get an exact answer in terms of radicals (then again you could always use a CAS, which stands for "computer algebra system").

6 0
3 years ago
9 less than a number n equals 27
damaskus [11]
The answer is n-9=27, I am 100% confident in my answer...hope you get a nice grade :)

3 0
3 years ago
Read 2 more answers
Which of the following is a binomial with degree 4?
wel

Answer:

the answer is A

Step-by-step explanation:

hope it's help

4 0
3 years ago
20 POINTS<br> Can someone check over these? I have a quiz on it tomorrow :(
Mama L [17]

Looks good! You have the right answers.

However, the graph for 12 and 15 is inaccurate! Because he starts from a stop sign/stop light, the graph's speed should start from the origin!

Not to confuse you or anything, but this means the graph does not follow the description of the problem. Please let your teacher know so s/he can fix the worksheet.

3 0
3 years ago
PLEASE HELP IM FAILING PLZ ONLY ANSWER IF YOU ARE 100% SURE
Ganezh [65]

Answer:

Its 1.75

Step-by-step explanation:

hes going 0.25 faster every meet

3 0
3 years ago
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