Technology in Action, Complete 8e (Evans et al.) Stdnt Txt
Chapter 9: Securing Your System: Protecting Your Digital Data and Devices
1) A _ is a secure Internet pathway that large corporations use to protect sensitive
data.
VPN
2) Which of the following i
Handout 2. Describing Data with Numerical Measure.
A picture provides a global/qualitative description of
a sample.
Numerical measures can be created for both populations
and samples.
A parameter is a numerical descriptive measure calculated
. a populat
Handout 1 . Chapter 1.
What is statistics?
The word statistics has two meanings:
In the more common usage, statistics refers to numerical
facts. The numbers that represent the income of a family,
the age of a students
The second meaning of statistics r
9/8/2015
Handout 1 . Chapter 1.
What is statistics?
The word statistics has two meanings:
In the more common usage, statistics refers to numerical
facts. The numbers that represent the income of a
family, the age of a students
The second meaning of sta
DEPARTMENT OF MATHEMATICS AND STATISTICS
UNIVERSITY OF MASSACHUSETTS AT AMHERST
STAT 501 Methods of Applied Statistics
Fall 2015
Lectures: Tu, Th 2:30 3:45, LGRT 219
Professor: Joanna Jeneralczuk
Office: LGRT 1328
Phone: 545- 3128
Email: jeneral@math.umas
Measures of Center
Handout 2. Describing Data with Numerical Measure.
A picture provides a global/qualitative description of
a sample.
A measure along the horizontal axis of the data distribution that
locates the center of the distribution.
The mode: i
Handout 3.
Remember the objective:
Population
Probability
Probability .
Probability
Sample
Describe the
sample data
Compute measures of
variability
Probability
Why the price of a car insurance changes when you turn
24?
The price depends on how likely yo
Handout 3.
Remember the objective:
Probability .
Why the price of a car insurance changes when you turn
Probability
24?
The price depends on how likely you are to have a car
accident. It is estimated that the shape of this likelihood
decreases as you gr
@jnm 1.54 Student Heights The self—reported
291-6151 heights of lﬂﬁ students in a biostatistics class
are described in the relative frequency histogram
below.
E
i
1
n:
:1. Describe the shape of the distribution.
b. Do you see any unusual feature in this
Homework 1
1.Body temperatures (in F) were measured on 30 healthy individuals, resulting in the data H1.1.
a) Make a histogram and a stem and leaf plot . Comment on the shape of distribution.
b) Calculate the mean, median ,mode and standard deviation.What
Math 330 Multivariate Data Analysis
Final Exam Takehome
Distributed Dec. 12, 2012
Due Dec. 21, 2009 by 5 p.m. to 306 SM (or faxed/emailed)
Instructions:
1. Your work should be presented as a write-up for the last 2 problems, and as sentence/short
answers