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3 years ago

LGS matematik

Mathematics

1 answer:

NeX [460]3 years ago

3 0

Answer:

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Associations In Data:Question 10

Karo-lina-s [1.5K]

Answer:

$\bar X = \frac{62+63+68+72+79+80+83+93+94+95}{10}= 78.9$

$|62-78.9| = 16.9$

$|63-78.9| = 15.9$

$|68-78.9| = 10.9$

$|72-78.9| = 6.9$

$|79-78.9| = 0.1$

$|80-78.9| = 1.1$

$|83-78.9| = 4.1$

$|93-78.9| = 14.1$

$|94-78.9| = 15.1$

$|95-78.9| = 16.1$

$MAD = \frac{\sum_{i=1}^n |X_i -\bar X|}{n}$

And replacing we got:

$MAD =\frac{16.9+15.9+10.9+6.9+0.1+1.1+4.1+14.1+15.1+16.1}{10}= 10.12$

And the best anwer is

10.12

Step-by-step explanation:

We have the following data given:

62 63 68 72 79 80 83 93 94 95

And we need to begin finding the mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X = \frac{62+63+68+72+79+80+83+93+94+95}{10}= 78.9$

Now we can find the mean absolute deviation like this:

$|62-78.9| = 16.9$

$|63-78.9| = 15.9$

$|68-78.9| = 10.9$

$|72-78.9| = 6.9$

$|79-78.9| = 0.1$

$|80-78.9| = 1.1$

$|83-78.9| = 4.1$

$|93-78.9| = 14.1$

$|94-78.9| = 15.1$

$|95-78.9| = 16.1$

And finally we can find the mean abslute deviation with the following formula:

$MAD = \frac{\sum_{i=1}^n |X_i -\bar X|}{n}$

And replacing we got:

$MAD =\frac{16.9+15.9+10.9+6.9+0.1+1.1+4.1+14.1+15.1+16.1}{10}= 10.12$

And the best anwer is

10.12

8 0

3 years ago

Dalia bought a few swirl marbles and divided it equally among four of her friends and her brother,Jake. While playing,Jake lost

Veronika [31]

Answer:

45 marbles

Step-by-step explanation:

Using the information provided, we can form the equation x/5 - 2 = 7

Step 1: Add two on both sides of the equation x/5 - 2 = 7

Step 2: Multiply both sides of the equation by 5, to cancel out x. x/5=9

Step 3: Lastly, you get that x=45 marbles

5 0

3 years ago

The sum of 12 and the quantity 8 times a number k is equal to 48

Rudiy27

12+8k=48
=>8k=36
=>k=36/8
=>k=4.5

6 0

3 years ago

You have $83 in your bank account each week you plan to deposit eight dollars from your allowance and $15 from your paycheck the

docker41 [41]

We know that you have 83$ in your bank account.

Okay so what is 15+8=23 So that means you get 23$ per week.

Now what is 83+23=106
106+23=129
129+23=152
152+23=175
Now that was four 23's

That means it would take 4 weeks for you to have 175 dollars in your bank account.
Hope this helped.

7 0

3 years ago

What is 1/1 minus 7/12

Stolb23 [73]

5/12 because 1/1 is a whole, 1, so all you have to do is 1 - 7/12.

5 0

3 years ago

Read 2 more answers