Concept explainers
To find: The perfect binomial distribution graph.
Answer to Problem T6.9SPT
The random variable of X follows the binomial distribution with 8, and
Explanation of Solution
Given:
As per the given graph, the probability distribution is:
x | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
P(x) | 0.05 | 0.20 | 0.30 | 0.25 | 0.15 | 0.05 | 0.01 | 0.00 | 0.00 |
Calculation:
The given probability distribution is, it can be written as:
Thus, the total number of trails is 8, while the probability of success in 0.3.
Therefore, the random variable of X follows the binomial distribution with 8, and probability 0.3.
Thus, the correct option is “b”.
Chapter 6 Solutions
PRACTICE OF STATISTICS F/AP EXAM
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