Respuesta :
Answer:
The standard deviation is 0.1104. The 10% condition is met because it is very likely there are more than 200 minnows in the pond.
Step-by-step explanation:
The standard deviation for a proportion is:
σ = √(pq/n)
where p is the proportion, q is 1−p, and n is the sample size.
σ = √(0.58 × 0.42 / 20)
σ = 0.1104
Since the pond is large, there's probably more than 200 minnows, so the 10% condition is met.
The standard deviation should be 0.1104. The 10% condition should be met since it is very likely there are more than 200 minnows in the pond.
Calculation of the standard deviation:
Fifty-eight percent of the fish in a large pond are minnows. Imagine scooping out a simple random sample of 20 fish from the pond and observing the sample proportion of minnows.
So, The standard deviation for a proportion is:
[tex]= \sqrt (pq\div n)[/tex]
Here
p is the proportion,
q is 1−p,
and n is the sample size.
So,
[tex]= \sqrt (0.58 \times 0.42 \div 20)[/tex]
= 0.1104
Since the pond should be large, there's probably should be more than 200 minnows, therefore the 10% condition is met.
Learn more about sample here: https://brainly.com/question/24710931