You have found the following ages (in years) of all 5 zebras at your local zoo: 8, 11, 17, 7, 19? What is the standard deviation
? Round your answers to the nearest tenth.
2 answers:
Answer:

And the can be founded with this formula:


And rounded to the nearest tenth we got 
Step-by-step explanation:
For this case we have the following data given:
8, 11, 17, 7, 19
The first step is calculate the sample mean with this formula:

And replacing we got:

And the deviation can be founded with this formula:

And replacing we got:

And rounded to the nearest tenth we got 
Answer:
Average Age 12.4
Variance 23
Step-by-step explanation:
I got it wrong and this was the answer on Khan Academy
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Answer:
242
Step-by-step explanation:
22=a/11
22*11= a
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