Binary Numbers
What is a bit in computing?
A bit is the smallest unit of data in a computer, represented as either a 0 or a 1.
What is the difference between lossless and lossy compression?
Lossless compression preserves all original data, while lossy compression reduces file size by removing some data.
What is metadata?
Metadata is data about data, providing context such as the date of creation or file size.
What role do programs play in data processing?
Programs automate the collection, organization, and analysis of data to extract useful information
The number of bits needed to store the value 15.
What is 4.
Convert the binary number 1010 to decimal.
10
What is an example of a lossless compression algorithm?
ZIP or PNG.
How can combining data from different sources improve analysis?
It allows for a more comprehensive view, leading to better insights and conclusions.
Give an example of a program used for organizing data.
Excel or Google Sheets.
The binary ID number of a student who comes after 10010011
What is 10010100
What is a byte and how many bits does it contain?
A byte is a group of 8 bits.
Why might lossy compression be preferred in streaming video?
Because it significantly reduces file size, allowing for faster loading times, which is crucial for streaming.
Describe one challenge associated with processing large datasets.
Large datasets may exceed the capacity of a single computer, requiring parallel systems for processing.
What is iterative processing in data analysis?
It involves using multiple cycles of data processing to refine analysis, such as sorting, filtering, and making predictions.
The maximum number of elements, in a sorted list of 50 names in alphabetical order, to be examined using a binary search.
What is 6?
Explain how binary numbers represent data and why it's essential for computers.
Binary numbers represent data using two states (0 and 1), which correspond to electrical signals in computers, making it easier to process and store information.
How does redundancy in data affect compression efficiency?
More redundancy allows for greater compression, as repetitive data can be represented with shorter codes.
What is correlation in data analysis, and why can it be misleading?
Correlation indicates a relationship between two variables, but it does not imply causation; other factors may influence both variables.
Explain the significance of data filtering systems.
They help efficiently find relevant information and recognize patterns in large datasets.
Ordering stored data files by date is a way THIS improves the use of the actual data file.
What is metadata.
Describe the process of converting a decimal number to binary.
Divide the decimal number by 2, record the remainder, and repeat until the quotient is 0. Read the remainders from bottom to top.
Explain the importance of metadata in data compression.
Metadata provides context and additional information about the data, which can enhance the effectiveness of data compression.
How can information be extracted from data through analysis?
By processing data to identify patterns and trends that provide insights into behaviors or outcomes.
Discuss how data transformation can reveal patterns in data.
By translating data into different formats or scales, trends and insights may become more apparent, guiding decision-making.
Ensures a transmitted file is full restored to its original version.
What is lossless compression