Question
You have decided to dig a pond, and to stock it with fish. Every fish that...
You have decided to dig a pond, and to stock it with fish. Every fish that you put in the pond is measured (in inches), and you have recorded the data in Table 1. Use this data to answer questions 1-3.
| 3.8 | 2.4 | 2.8 | 3.4 |
| 3.5 | 2.3 | 2.9 | 1.9 |
| 4.3 | 2.2 | 1.9 | 3.1 |
1. What is the average length of a fish in your pond after you
stock it?
2. What is the variance?
3. What is the standard deviation?
Homework Answers
Answer #1
Solution: Here we have given the length of Stocked Fish.
Total 12 stocked fish are given.
Length of stocked fish=
=3.8, 2.4, 2.8, 3.4,
3.5, 2.3, 2.9, 1.9, 4.3, 2.2, 1.9, 3.1
1) Average length of a fish in your pond after you stock
=
=
= 
=2.875
2.875 is the Average length of a fish in your pond after you stock.
2) Variance=
=
=
=
0.593
3) Standard deviation = 
=
=
=0.770
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