Answered: In engineering data analysis class,…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.8: Probabilities Of Disjoint And Overlapping Events

Problem 2C

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In engineering data analysis class, there are 20% girls and 80% boys. Students are either in OBL or CBL. Suppose 10% of the girls are taking the class in CBL mode while 80% of the boys are in OBL mode. If a student is chose at random from the class, what is the probability that (a) the chosen student is in OBL given that the student is a girl? (b) the chosen student is a boy given that he is in CBL mode ?

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Definition Definition Measure of central tendency that is the value that occurs most frequently in a data set. A data set may have more than one mode if multiple categories repeat an equal number of times. For example, in a data set with five item—3, 5, 5, 29, 473—the mode is 5 because it occurs twice and no other value occurs more than once. On a histogram or bar chart, the element with the highest bar represents the mode. Therefore, the mode is sometimes considered the most popular option. The mode is useful for nominal or categorical data (e.g., the most common color car that users purchase), but it is problematic for continuous data because it is more likely not to have any value that is more frequent than the other.

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