For R = {x : x is a letter occurring in the word KITE}, what is n(R)?
Answer and explanation
Correct answer: 4
The set R contains the distinct letters appearing in KITE: K, I, T, and E. The notation n(R) means the cardinality, or number of distinct elements, of R. Since no letter is repeated, the count is 4, so option B is correct. The answer is not 3 or 2 because those omit letters, and it is not 5 because the word contains only four different letters.
Frequently asked questions
What is the correct answer to this question?
4
Why is this the correct answer?
The set R contains the distinct letters appearing in KITE: K, I, T, and E. The notation n(R) means the cardinality, or number of distinct elements, of R. Since no letter is repeated, the count is 4, so option B is correct. The answer is not 3 or 2 because those omit letters, and it is not 5 because the word contains only four different letters.
Which subject and chapter does this question cover?
This is a Class 11 Applied Mathematics question. Chapter: Descriptive Statistics. Topic: Data Collection.
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