Purchase Solution

the expected number of changeovers

Not what you're looking for?

Ask Custom Question

If you have n independent flips of a coin with probability p of landing heads. And a changeover occurs whenever an outcome differs from the one preceding it. Ex: if n=5 and outcome is HHTHT then there are 3 changeovers.

We can express the number of changeovers as the sum of n-1 Bernoulli random variables.

What is the expected number of changeovers?

Purchase this Solution

Solution Summary

The solution shows how to calculate the expected number of changeovers, which is expressed as the sum of n -1 Bernoulli random variables.

Solution Preview

Please see the attached file for detailed solution.

The probability of having a ...

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.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

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.