Introductory Statistics: Exploring the World through Data, 1e Active Learning Lecture Slides For use with Classroom Response Systems Introductory Statistics: Exploring the World through Data, 1e by Gould and Ryan Quiz on 3.4 & 4.5 © 2013 Pearson Education, Inc.

© 2013 Pearson Education, Inc. True or False The median cuts a distribution down the middle, so about 50% of the observations are below it and about 50% are above it. True False © 2013 Pearson Education, Inc.

© 2013 Pearson Education, Inc. True or False In a symmetric distribution, the mean and median are approximately the same.. True False © 2013 Pearson Education, Inc.

© 2013 Pearson Education, Inc. True or False In a right skewed distribution, the median tends to be greater than the mean. True False © 2013 Pearson Education, Inc.

A right-skewed distribution has A tail that goes to the right A tail that goes to the left One mode A bell-shape © 2013 Pearson Education, Inc.

A distribution that has a tail that goes to the left is called Right-skewed. Bimodal. Left-skewed. Symmetric. © 2013 Pearson Education, Inc.

A symmetric distribution that has one mound is often referred to as a Right-skewed distribution. A bell-shaped distribution. Left-skewed distribution. A Bimodal distribution. © 2013 Pearson Education, Inc.

A distribution that has one mound is called a Multimodal distribution. Unimodal distribution. Left-skewed distribution. A Bimodal distribution. © 2013 Pearson Education, Inc.

A bimodal distribution has One mound. Two mounds. More than two mounds. Is symmetric. © 2013 Pearson Education, Inc.

An extremely large or extremely small observation is called A mean. A mode. An outlier. A median. © 2013 Pearson Education, Inc.

© 2013 Pearson Education, Inc. An outlier is a value so large or small that they it does not fit the data. has no precise definition. can be caused by mistakes in data entry. All of the above. © 2013 Pearson Education, Inc.

© 2013 Pearson Education, Inc. True or False Two commonly used graphs to display the distribution of a sample of categorical data are bar charts and pie charts. True False © 2013 Pearson Education, Inc.