CIS 1060 Final

5.0 (1 review)
What are the four V's of big data?
Click the card to flip šŸ‘†
1 / 40
Terms in this set (40)
What are the four V's of big data?
Volume, Velocity, Variety, Veracity
Data that are too large or too complex to be handled by standard data-processing techniques and typical desktop software are called __________.
Big Data
_________ analytics are techniques that use models, constructed from past data, to predict the future or to ascertain the impact of one variable on another.
Predictive
__________ is the most critical step of the decision-making process.
Identifying and defining the problem
In the spectrum of business analytics, which is the most complex?
Prescriptive
__________ are analytical tools that describe what has happened.
Descriptive Analytics
__________ has to do with how much uncertainty is in the data.
Veracity
Business analytics is the scientific process of transforming data into insight for making better __________ .
decisions
Advanced analytics generally refers to
predictive and prescriptive analytics.
A data __________ is trained in both computer science and statistics and knows how to effectively process and analyze large amounts of data.
scientist
_______________ acts as a representative of the population.A sampleThe data collected from the customers in restaurants about the quality of food is an example of a(n)...observational study.Compute the relative frequencies for the data given in the table below: GradesNumber of students A 16 B 28 C 33 D 13 Total 900.18, 0.31, 0.37, 0.14Compute the median of the following data. 32, 41, 36, 24, 29, 30, 40, 22, 25, 3731A sample of 13 adult males' heights are listed below. ā€‹ 70, 72, 71, 70, 69, 73, 69, 68, 70, 71, 67, 71, 74What is the range of the sample?7The letter grades (A, B, C, D, F) of business analysis students are recorded by a professor. This variable's classificationis categorical data.Compute the mean of the following data. 56, 42, 37, 29, 45, 51, 30, 25, 34, 5740.6A manager of a fast food restaurant wants the drive-thru employee to ask every fifth customer if he or she is satisfied with the service. Who makes up the sample?All survey respondentsData collected from several entities over a period of time (minutes, hours, days, etc.) are called...time series data.When working with data sets in Excel, __________ can be used to automatically highlight cells that meet specified requirements.conditional formattingNatalie needs to compare the number of employees by job title for the last five years. Which of the following charts should Natalie use?Clustered-column (bar) chartThis bar chart displays the demographics of a Business Analysis class. How many male students are in the class?50A two-dimensional graph representing the data using different shades of color to indicate magnitude is called a _______.heatDeleting the grid lines in a table and the horizontal lines in a chart ________.increases the data-ink ratio.Making visual comparisons between categorical variables may be difficult in a ________.pie chart.The following image is a ________.line chart.__________ are visual methods of displaying data.ChartsThe ratio of the amount of ink used in a table or chart that is necessary to convey information to the total amount of ink used in the table and chart is known as data-ink ratio. Using additional ink that is not necessary to convey information has what effect on the data-ink ratio?It reduces the data-ink ratio.DJ needs to display data over time. Which of the following charts should he use?Line chartA data visualization tool that updates in real time and gives multiple outputs is called ________.a data dashboard.A data visualization tool that updates in real time and gives multiple outputs is called ________.a data dashboard.In many cases, white space in a chart can improve ________.readability.This bar chart displays the demographics of a Business Analysis class. How many male students are in the class?50Data-ink is the ink used in a table or chart that _______.is necessary to convey the meaning of the data to the audience.In business, the values indicating the business's current operating characteristics, such as its financial position, the inventory on hand, and customer service metrics, are typically known as ________.key performance indicators.Deleting the grid lines in a table and the horizontal lines in a chart ________.increases the data-ink ratio.__________ are visual methods of displaying data.ChartsA _____________ is a graphical presentation of the relationship between two quantitative variables.scatter chartA two-dimensional graph representing the data using different shades of color to indicate magnitude is called a _______.heat map.Making visual comparisons between categorical variables may be difficult in a ________.pie chart.