the probability that the light is green
Not what you're looking for?
For problem choose what type of problem it is and solve using the binomial, geometric, or Poisson distribution.
A particularly long traffic light on your morning commute is green 20% of the time that you approach it. Assume that each morning represents an independent trial.
a) Over five mornings, what is the probability that the light is green on exactly one day?
b) Over 20 mornings, what is the probability that the light is green on exactly four days?
c) Over 20 mornings, what is the probability that the light is green on more than four days?
Purchase this Solution
Solution Summary
The solution shows how to caculate the probability that the light is green, which follows binomial distribution. The solution is detailed and well presented.
Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.