Solution: The correct option is d. 8.75
<u>Explanation:</u>
The formula for variance is:

First we need to find the mean
of the given data:

Now let's find
, please have a look at the attached picture:

You could divide 100 by 4 which is 25. Then divide 69 by 4 which would bring you to 17.25. 169 divided by 4 is 42.25. The answer would be 42 with a remainder of 1
Answer:
11
Step-by-step explanation:
Substitute the given values into the expression
3² + 3(8) ÷ 2 - 2(5)
= 9 + 24 ÷ 2 - 10 ← evaluate division before addition/ subtraction
= 9 + 12 - 10
= 21 - 10
= 11
Answer:
54/7
Step-by-step explanation:
- Use the KCF method - Keep, Change, Flip
- 6 divided by 7/9 is just 6/1 divided by 7/9
- You can keep 6/1 as the way it is
- Next, you change the sign from division to multiplication
- Lastly, you flip 7/9 to 9/7
- It will now change from 6 divided by 7/9 to 6/1 x 9/7
- You now multiple 9 x 6 which is 54 and divide by 7
- You cannot simplify further so the answer is 54/7
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Answer:
$190
8
Step-by-step explanation: