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iogann1982 [59]
3 years ago
12

Find the standard deviation for each group of data items. Round answers to two decimal places. 7,9,9,15​

Mathematics
1 answer:
KonstantinChe [14]3 years ago
6 0

Answer:

3

Step-by-step explanation:

the calculator I used

http://www.alcula.com/calculators/statistics/standard-deviation/

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PLS help I will give brainliest to the one who will answer me first.<br><br> pic is not blurry
kiruha [24]

Answer:

mean for a = 60/10 = 6

mad of a = 2

mean for b = 80/10 = 8

mad of b = 2

Step-by-step explanation:

Mean absolute deviation (MAD) of a data set is the average distance between each data value and the mean. Take each number in the data set, subtract the mean, and take the absolute value. Then take the sum of the absolute values. Now compute the mean absolute deviation by dividing the sum above by the total number of values in the data set. The mean absolute deviation, MAD, is 2.

\frac {1}{n} \sum \limits_{i=1}^n |x_i-m(X)|

m(X) = average value of the data set

n = number of data values

x_i = data values in the set

mean = average.

5 0
2 years ago
Juanita has a strip of paper divided into 8 equal sections. She colored 3 of the sections yellow, 2 of the sections black, and t
Musya8 [376]
I think its 2/8 but I'm not sure
5 0
3 years ago
A printer needs 12,000 good copies of a flyer for a particular job. Previous experience has shown that she can expect no more th
PilotLPTM [1.2K]

Answer:

12600

Step-by-step explanation:

5% of 12000 is 600 so just add them

8 0
3 years ago
Suppose you add two vectors A and B . What relative direction between them produces the resultant with the greatest magnitude? W
Anna71 [15]

Answer: The resultant would be the sum and the difference between the vectors.

Step by step explanation: 1. The possible resultant is between the sum of the 2 vectors and the difference between the two vectors.

2. The greatest magnitude is when the vectors lie in the same direction and the sum would be the scalar sum of the two vectors. The angle between the two would be zero degree.

6 0
3 years ago
If y varies directly with x and y=100 when x=5, what is the value of k?
horrorfan [7]
When it says varies directly, it means that y and x are going to be on opposite sides of the equals sign and that there is a constant, k,

y=kx

Plug in (5,100)

100=k(5)

K=20
7 0
3 years ago
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