Concept explainers
a.
To find: The distribution that the random variable R is following.
a.
Explanation of Solution
Given:
The figure is:
Following requiremens are fulfilled by the random variable R .
Probability of success, that is, probability of getting red light on any press of the buttton ( p ) which is equal to 0.30 is fixed.- Number of press are fixed.
- Trials of getting red light are independent of each other.
- There are two outcomes, that is getting red light and not getting red light.
All the binomial conditions are fullfilled here. Thus, it could be said that R follows the
b.
To explain: The shape of the provided probability distribution.
b.
Explanation of Solution
From the probability distribution, it could be seen that shape of the histogram is approximately bell-shaped. Hence the distribution of R does not depart majorly from normality.
Chapter 6 Solutions
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