Qmb Stacey Brook UPDATED ACTUAL Questions and CORRECT Answers
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Qmb Stacey Brook
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Qmb Stacey Brook
Qmb Stacey Brook UPDATED ACTUAL
Questions and CORRECT Answers
IMPORTANT PRACTICE TEST INFORMATION!!!!
This may be even more helpful than this quizlet!!!!
In mindtap go to the left-hand toolbar, select courses, and select this course.
You should see a dashboard with the chapters on the left...
Qmb Stacey Brook UPDATED ACTUAL
Questions and CORRECT Answers
IMPORTANT PRACTICE TEST INFORMATION!!!!
This may be even more helpful than this quizlet!!!!
In mindtap go to the left-hand toolbar, select courses, and select this course.
You should see a dashboard with the chapters on the left and your recent homework scores on
the right.
Then on chapter 1 click the down arrow to display all of the sub categories.
You should see the last sub category it is chapter 1 review and assignments- click on this then
click chapter 1 test prep.
This will take you to a page where you can create your own test!
What you should do is go to the modules- he lists the textbook sections to read- select these
sections on the practice test- only practice conceptual questions.
These questions are confusing and difficult so far- so it seems like the perfect way to
practice!!! Manifesting amazing grades for you all and good luck! - CORRECT ANSWER-
✔✔
Dataset - CORRECT ANSWER- ✔✔all the data collected for a particular analysis
Data - CORRECT ANSWER- ✔✔The facts & figures collected, analyzed, and summarized
for presentation and interpretation.
Element - CORRECT ANSWER- ✔✔The entity on which data is collected.
Variable - CORRECT ANSWER- ✔✔a characteristic of interest of an element.
Observation - CORRECT ANSWER- ✔✔The variables associated with an individual
element.
,Categorical Data - CORRECT ANSWER- ✔✔Use numeric or ordinal values of measurement
of categories.
Quantitative Data - CORRECT ANSWER- ✔✔use numeric (quantitative) measures
Cross-sectional Data - CORRECT ANSWER- ✔✔data collected at a similar point in
time.
Time Series - CORRECT ANSWER- ✔✔data collected over several time periods.
Panel Data - CORRECT ANSWER- ✔✔combination of cross-sectional and time series data.
Descriptive Statistics - CORRECT ANSWER- ✔✔Describes data or variables
Population - CORRECT ANSWER- ✔✔Is the set of all data/variables of a statistical analysis.
Sample - CORRECT ANSWER- ✔✔is a subset of the population
Statistical Inference: - CORRECT ANSWER- ✔✔Uses data from a sample to make estimates
and test hypothesis about the characteristics of a population.
What does row 1 usually contain in Excel? - CORRECT ANSWER- ✔✔Typically row 1
contains the variable's names.
What does Column A usually contain in Excel? - CORRECT ANSWER- ✔✔Column A
contains the elements; and the rest of the
worksheet contains the data in the dataset.
How do you calculate the mean in excel? - CORRECT ANSWER- ✔✔=Average
,How do you calculate the median in excel? - CORRECT ANSWER- ✔✔=median
What is data analytics? - CORRECT ANSWER- ✔✔Analytics is the scientific process of
transforming data
for decision making. There are three broad areas of
data analytics.
Descriptive Analytics - CORRECT ANSWER- ✔✔describe what hashappened in the past.
Predictive Analytics - CORRECT ANSWER- ✔✔uses statistical models from
past data to predict the future [forecasting] or access
the impact of one variable on another [inference].
Prescriptive Analytics - CORRECT ANSWER- ✔✔uses models seeking to find a best
(optimal) solution. Often these are sometype of optimization model.
The difference between data and big data are - CORRECT ANSWER- ✔✔We will use data
(not big data)
1. Volume - the number of observations.
2. Velocity - the speed at which data is collected.
3. Variety - the forms of data are of different types.
4. Veracity - the reliability of the data generated.
Data Mining - CORRECT ANSWER- ✔✔Focuses on extracting predictive information from
big
data.
Frequency Distribution - CORRECT ANSWER- ✔✔a tabular summary of datashowing the
number (i.e. frequency) of observationsin each of several non over-lapping categories.
Relative Frequency - CORRECT ANSWER- ✔✔frequency of a class/ n of a class
, Percent Frequency - CORRECT ANSWER- ✔✔relative frequency x 100
Bar Chart: - CORRECT ANSWER- ✔✔a visual display of frequency; relative
frequency & percent frequency distributions.
How would you make a frequency table in excel? - CORRECT ANSWER- ✔✔a. Select any
cell in Column A
b. Click Insert on the Ribbon Tab
c. In Tables, click Recommend Pivot Tables
d. Click OK.
pie chart - CORRECT ANSWER- ✔✔a visual display of frequency; relative frequency &
percent frequency distributions.
How would you create a bar chart in excel? - CORRECT ANSWER- ✔✔a. Select any cell
from A1 to A51.
b. Click the Insert tab from the Ribbon.
c. In Charts, click Recommended Charts
d. Click OK. [bar chart appears in a new worksheet]
What are the basic steps to using excel? - CORRECT ANSWER- ✔✔Access the data,
Functions & formulas, Apply tools, Editing options
A frequency distribution with quantitative data mustdefine the classes for a frequency
distribution by: - CORRECT ANSWER- ✔✔a. determine the number of non over-lapping
classes;
b. determine the width of each class;
c. determine the class limits.
Number of Classes - CORRECT ANSWER- ✔✔Typically, between 5 and 20. Small datasets
have less; larger datasets have more.
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