What is the support count of {bagel, coffee, jam} ?

Question

What is the support count of {bagel, coffee, jam} ?

BlackTom AI · Accepted Answer

Question restatement: What is the support count of {bagel, coffee, jam}?

Option 1: '3' — This option says the support count is 3. Interpreting support count as the number of transactions that contain all items in the itemset {bagel, coffee, jam}, this would mean exactly three transactions include all three items together. If the dataset you’re using has three such transactions, this option is consistent with that definition.

Option 2: '0.5' — A value of 0.5 would suggest a fractional support count, which is not standard. Support is typically expressed as a count of transactions or as a proportion (support) relative to the total number of transactions, not as a raw fractional count. If you encounter 0.5, it might be a misinterpretation or a mistaken reporting of the support proportion rather than the count.

Option 3: '5' — This asserts that five transactions contain all three items together. If your dataset indeed has five transactions that include bagel, coffee, and jam simultaneously, this would be the correct count. However, that would differ from the option that lists 3, so it depends entirely on the underlying data.

Option 4: 'None of the above' — Selecting this would imply that neither a count of 3, 0.5, nor 5 is correct for the support count. This would be chosen only if the actual count were something other than 3, 0.5, or 5, including a possible count that isn’t represented among the options.

Option 5: '1.5' — Similar to 0.5, this is a fractional value and does not align with the standard notion of a raw support count. If someone intended to express a proportion, 1.5 would still not be valid, since proportions range from 0 to 1.

Synthesis: The concept of support count requires counting transactions that include all items in the specified itemset. If your data yields exactly three transactions containing bagel, coffee, and jam together, then the count 3 is consistent with that definition. If the dataset instead has a different number of such transactions (for example five), option 3 would be the correct count. Values like 0.5 or 1.5 represent fractions and are more appropriate for support as a proportion relative to the total number of transactions, not for the raw count. 'None of the above' would be appropriate only if none of the provided numeric options matches the actual data-derived count.

BA 3551 (002 & 003) Quiz 1 - Honorlock

What is the support count of {bagel, coffee, jam} ?

View Explanation

Log in for full answers

Similar Questions

For the given set of transactions sort the association rules listed in order of their decreasing confidence values.

The support of an itemset measures the probability that an itemset appears in a given transaction.

In data mining, linking occurrences to a single event is called:

What is the lift of the association rule: {coffee} -> {milk, bagel}?

What is the confidence of the association rule: {coffee} -> {milk, bagel}?

What is the support percentage of the association rule {coffee} -> {milk, bagel}?

Consider the following association rule: {jam, butter} -> {bread} Which of the following statements about the association rule is False?

Question at position 13 Which of the following are antecedents of the rule with highest confidence for the consequent whole milk? whole milkrolls/bunsfruit/vegetable juiceyogurtcitrus fruittropical fruitother vegetablesroot vegetables题目解析

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler