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Sagot :
The probability is 0.04.
Define probability sampling.
The sampling probability of an element or member of the population in statistics, in the theory relating to sampling from finite populations, is its likelihood of being included in the sample during the drawing of a single sample.
Probability sampling refers to the selection of a sample from a population when this selection is based on the principle of randomization, that is, random selection or chance. When compared to non-probability sampling, probability sampling is more difficult, time-consuming, and typically more expensive.
Solution Explained:
Given,
x = 7, n = 10, p = 0.85 and q = 0.15
Using the formula,
P(X=6) = [tex]_{n}C_{x} (0.85)^{n} (0.15)^{x}[/tex]
= [tex]_{10}C_{6} (0.85)^{6} (0.15)^{4}[/tex]
= 210(0.377)(0.0005)
= 0.04
To learn more about probability sampling, use the link given
https://brainly.com/question/28016369
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