(I to Construct a Binomial Distribution We Need to Know $\pi$

question 90

Multiple Choice

(i. To construct a binomial distribution we need to know the total number of trials and the probability of a success. (ii) If n = 900 and $\pi$ = 1/3, the variance of this binomial distribution is 200.
(iii) If $\pi$ = 1/5 and n = 100, the standard deviation of this binomial distribution is 20.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) is a correct statement but not (ii) or (iii).
• C) (i) and (ii) are correct statements but not (iii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

Learn the specific conditions under which chi-squared methods of analysis are used.

Understand the utilization of the chi-squared distribution across different statistical tests.

Recognize the relationship and differences between z-tests and chi-squared tests in hypothesis testing.

Identify the correct statistical technique for comparing two or more populations with qualitative data.

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