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patriot [66]
3 years ago
13

Which data set has the same standard deviation as the data set 3,2,5,6,8

Mathematics
2 answers:
alisha [4.7K]3 years ago
6 0

Answer:

a) 4,3,6,7,9

Step-by-step explanation:

<em>The value of standard deviation does not get affected if we add constant number in every observation.</em>

In the given data set if we add 1 in every observation then we will get same value as given in option (a).

Thus, the standard deviation of both the observation is same.

Also, we didn't get other options by addition and subtraction of any constant value.

Further, Standard Deviation is used to measure spread of the data and it is defined as square of the distance between the observation and mean of the distribution.

anyanavicka [17]3 years ago
4 0
The answer is A) 4,3,6,7,9
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lisov135 [29]
Answer:

First option: (Substitute)

2x+3 (x+1.5) = 12
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2 years ago
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Choose the numbers that are terminating decimals. Select all that apply.
horsena [70]

Answer: A, C, and D

Step-by-step explanation:

          A terminating decimal is a decimal that has an end. In other words, \frac{1}{4}  =0.25 is one, but \frac{1}{3} =0.3333... is not.

✓ A. 0.032

✗ B. 0.999...

✓ C. 0.525

✓ D. 0.75

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1 year ago
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3 years ago
A train travels 80 miles per hour. If its speed remains the same, how far will the train have gone in 90 minutes?
Nataly_w [17]
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3 0
3 years ago
Two families are shopping for a camping trip. The first family buys 3 flashlights and 4 sleeping bags at a cost of $118. The sec
Sliva [168]

Answer:

3x +4y = 118

5x+6y =180

y= $25

Step-by-step explanation:

Let x = the cost of a flashlight

Let y = the cost of a sleeping bag

3x +4y = 118

5x+6y =180

Multiply the first equation by -5

-5(3x +4y) = -5*118

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Multiply the second equation by 3

3(5x+6y) =3*180

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Add the modified equations together.

We are using elimination to eliminate the variable x

-15x -20y = -590

15x + 18y = 540

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

-2y = -50

Divide by -2

-2y/-2 = -50/-2

y =25

Each sleeping bag costs $25

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3 years ago
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