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alekssr [168]
3 years ago
10

Find the sample variance for the data 9,12,9,14,6. Round the answer to one decimal place. Sample variance

Mathematics
1 answer:
Feliz [49]3 years ago
3 0

Answer:

9.5

Step-by-step explanation:

Find the sample variance for the data 9,12,9,14,6. Round the answer to one decimal place. Sample variance.

Step 1

We find the Mean of the numbers

Mean = Sum of terms/ Number of terms

Mean = 9+12+9+14+6/5

= 50/5

= 10

Step 2

We find the sample variance

Formula =

(x - Mean)²/n - 1

n = 5

= (9 - 10)²+(12 -10)²+(9- 10)²+(14-10)²+(6-10)²/5 - 1

= 1+ 4+ 1+ 16+16/5 - 1

= 38/5 - 1

= 38/4

= 9.5

Therefore, Sample variance = 9.5

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Serggg [28]

A person eating at a cafeteria must choose 4 of the 13 vegetables on offer. calculate the number of elements in the sample space for this experiment.

Answer: The number of elements in the sample space for this experiment can be found using the combination formula because the order does not matter here.

Therefore, the number of elements in the sample space for this experiment is:

13C4=\frac{13!}{(13-4)!4!}

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Therefore, the number of elements in the sample space for this experiment is 715.

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4 years ago
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4 years ago
-8m – 6(1 - 4m) = -102
Nastasia [14]

Answer:

Step-by-step explanation:

Here you go mate

Step 1

-8m – 6(1 - 4m) = -102  Question

Step 2

-8m – 6(1 - 4m) = -102  Remove parenthesis

16m-6=-102

Step 3

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Step 4

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Answer

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Answer:

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Hope this helps!

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