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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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Some characteristics are not capable of
being measured in the sense that height,
weight, and age aremeasured. These
characteristics are categorized only, as for
example, when an ill person is given a
medical diagnosis, or a person is
designated as belonging to an ethnic group.
These variables are called: *
Qualitative variables
Random variable
O Quantitative variable
O Not possible
First step in calculating median is *
Calculate range
O Arrange data
O Count the data
None of these
K

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You are looking for a home in a particular neighborhood, and you want to know the typical number of bathrooms and bedrooms, the square footage, and the appraised value of houses in that neighborhood. Which measure of central tendency (mean, median, or mode) would be the most appropriate for each piece of information listed, and why?
Is there any skewness suggested by the mean, mode and median of the ungrouped data?
3.3 Erika operates a website devoted to providing information and support for persons who are interested in organic gardening. According to the hit counter that records daily visitors to her site, the numbers of visits during the past 20 days have been as follows: 65, 36, 52, 70, 37, 55, 63, 59, 68, 56, 63, 63, 43, 46, 73, 41, 47, 75, 75, and 54. Determine the mean and the median for these data. Is there a mode? If so, what is its value?
_________ are used to display actual data points for individual-level data. Would this answer be Univariate Statistics?
Give 2 examples of Mode in Measure of central tendency to ungrouped data
How would I interpret the results of this calculation and how do they mean and median each represent the central tendency of this data set, and how and why do they differ in exact value?
What type of analysis and descriptive statistics should be conducted to best depict the relationship between the following variables? Also, specify the type of variable in each question ( such as nominal, ordinal, continuous, etc) and which is the independent and dependent variable in each question. 1. how the number of days in the ICU(intensive care unit) differ by renal failure status. 2. the association between the number of days in the ICU and the number of hours in the operating room. 3. the association between the number of days in the ICU and the number of hours on the bypass pump? 4. the association between the number of hours in the operating room and the number of hours on a bypass pump? 4. the relationship between the number of days in the ICU and gender?
Discuss the different techniques in describing the data using measures of central tendency and measures of variability.
1.) A researcher used the sample median as a measure of center instead of the sample mean. What do you think could have informed his decision and why? 2.) An investigator decided to conduct a research to describe the average number of females in each family. Considering the case of 200 families in the town. Describe what may contribute to the difference between the value of the sample statistics and its corresponding population parameter.
A lottery features twenty-five prizes of $20, ten prizes of $100, three prizes of $500 and one $2000 prize. Determine the mean, the median and the mode of the prizes. Which measure of central tendency best represents the average of this data and why?
2. Half of Oxnard College students are younger than 21 years old, and half of students are older than 21 years old. This would make 21 the ________ of this data set. Group of answer choices Mode Median Inter-Quartile Range (IQR) Mean

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