Exam 19: Probability and Statistics in Engineering

This question has four possible answers listed below and only one of them is correct. If you select one at random, what are the odds that you pick the correct answer?

For normal distribution, what percent of the data will fall in the interval of one standard deviation above and below the mean? A) $50 \%$ B) $65 \%$ C) $68 \%$ D) $95 \%$

That area of science that deals with collection, organization, analysis, and interpretation of data is known as

A random experiment is one that has random outcomes that cannot be predicted exactly.

There are 20 red marbles and 10 blue marbles mixed together in a cloth bag. If you reach in and pull out a marble, without looking, what are the odds of selecting a blue marble?

In probability, each time you repeat an experiment is called a

The standard deviation is

The arithmetic average of a list of numbers is known as the

The probability distribution for many engineering experiments is approximated by

Something with a large number of data points is commonly called a

For any probability distribution, the sum of probabilities is always

The cumulative frequency shows the cumulative number of students with scores up to and including those in the given range.

Random errors

Systemic errors are errors

A smaller portion of the entire data or population is commonly called a

There are 20 red marbles and 10 blue marbles mixed together in a cloth bag. If you reach in and pull out a marble, without looking, what is the probability of selecting a blue marble?

A common way of measuring the dispersion of data is by calculating the

The result of an experiment is called

This question has four possible answers listed below and only one of them is correct. If you select one at random, what is the probability that you pick the correct answer?

There are basically two types of observation errors: