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xenn [34]
2 years ago
8

9. A line contains L(-4,-4) and M(2, 3). Line q is in

Mathematics
1 answer:
algol132 years ago
5 0

don't know hahahahahahahau

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Which answer is the approximate standard deviation of the data set?
Anna35 [415]

Answer:

3.4

Step-by-step explanation:

Standard deviation of a population is defined as:

σ² = ∑(xᵢ − μ)² / n

The standard deviation of a sample is defined as:

s² = ∑(xᵢ − x)² / (n - 1)

It's not clear which one we have, so let's calculate both.

First, we must find the mean.

μ = (5+12+15+10+12+6+8+8) / 8

μ = 9.5

Now we find the squares of the differences:

(5-9.5)² + (12-9.5)² + (15-9.5)² + (10-9.5)² + (12-9.5)² + (6-9.5)² + (8-9.5)² + (8-9.5)²

= 80

Divide by n:

σ² = 80 / 8

σ² = 10

And take the square root:

σ = √10

σ ≈ 3.2

That's not one of the answers, so let's try the standard deviation of a sample instead of a population.

Instead of dividing by n, we'll divide by n-1:

s² = 80 / 7

And take the square root:

s = √(80/7)

s ≈ 3.4

So that must be it.

6 0
3 years ago
Light travels at about 3000 000 000 meter per second what is this speed in kilometers per hour
faltersainse [42]
3000000 Kilometers i believe
6 0
3 years ago
Read 2 more answers
The sum of two numbers is 39 . The larger number is 19 more than the smaller number. What are the numbers?
4vir4ik [10]

ANSWER: The numbers are 20 and 19

39-19= 20

20+19= 39

8 0
2 years ago
Read 2 more answers
Display how you could never a measurement given into ounces into pints
disa [49]
There is allways 4 ounces in 1 pint.
3 0
3 years ago
Read 2 more answers
32% of a number is 64 what is the number
Serjik [45]

Answer:

If you take 32 percent of a number and get 64, then what is that number? In other words, you know that 32 percent of a number is 64 and you want to know what that initial number is. Therefore, the answer to "64 is 32 percent of what number?" is 200, and you can also derive that 32 percent of 200 equals 64.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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