approximately 20% of 1000 fish in a pond are infected with a skin disease. A ran

Question

approximately 20% of 1000 fish in a pond are infected with a skin disease. A random sample of 20 fish is selected. The mean of the sample lien distribution for the proportion of your sample that is infected is approximately 20% of 1000 fish in a pond are infected with a skin disease. A random sample of 20 fish is selected. The mean of the sample lien distribution for the proportion of your sample that is infected is approximately 20% of 1000 fish in a pond are infected with a skin disease. A random sample of 20 fish is selected. The mean of the sample lien distribution for the proportion of your sample that is infected is

Explanation / Answer

proportion of fish infected = 20% = 0.20

Population size N = 1000

Sample size = n = 20

The mean of the sample would be np

= 20(20/100)

= 4

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