man
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter2: Solving Equations
Section2.1: Properties And Operations
Problem 9C
Related questions
Question
A man surveyed a sample of 36 high school students and asked, "How many days in the past week have you consumed an alcoholic beverage?" The results of the survey are shown to the right.
1. Is this data discrete or continuous? Draw a histogram of the data and describe its shape. Describe the shape of the distribution.
2. Based on the shape of the histogram, do you expect the mean to be more than, equal to, or less than the median?
Compute the mean and median. What does this tell you?
The mean is
(Type an integer or decimal rounded to two decimal places as needed.)
The median is
(Type an integer or decimal rounded to two decimal places as needed.)
What do the computed mean and median tell you? Fill in the blanks below. (Use a 25% difference as the criterion for a "substantial" difference between the mean and median.)
The prediction was
because the mean
the median in this distribution.
incorrect
correct
is substantially larger than
is substantially smaller than
is greater than
is not equal to
is equal to
is less than
3. Determine the mode .
The mode is
(Type an integer or decimal rounded to two decimal places as needed.
4. Do you believe that the survey suffers from bias? If so, what type and why?
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