Binomial Distribution
Not what you're looking for?
In a lab experiment involving inorganic syntheses of molecular precursors to organometallic ceramics, the final step of a five-step reaction involves the formation of a metal-metal bond. The probability of such a bond forming is p = 0.20. Let X equal the number of successful reactions out of n = 25 such experiments.
a) Find the probability that X is at most 4
b) Find the probability that X is at least 5
c) Find the probability that X is equal to 6
d) Give the mean, variance, and standard deviation of X
An urn contains 7 red and 11 white balls. Draw one ball at random from the urn. Let X =1 if a red ball is drawn, and let X =0 if a white ball is drawn. Give the p.m.f., mean and variance of X.
Purchase this Solution
Solution Summary
The solution contains the determination of p.m.f., mean and variance of a Binomial distribution for several problems.
Purchase this Solution
Free BrainMass Quizzes
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
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.
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.