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Odd or Even
Quiz by Haley Walker
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Odd or Even?Identify odd or even numberEven Or oddReview: Is it Even or Odd?Is this an EVEN or ODD number?Classifying Functions as Even, Odd, or NeitherIf and , then the difference between the largest and smallest possible values of is The integer 2019 can be formed by placing two consecutive two-digit positive integers, 19 and 20, in decreasing order. What is the sum of all four-digit positive integers greater than 2019 that can be formed in this way? We call the pair of positive integers a if the greatest common divisor of and is a perfect square. For example, is a happy pair because the greatest common divisor of 20 and 24 is 4. Suppose that is a positive integer such that is a happy pair. The number of possible values of with is 3628243027 Starting with a positive integer , Alicia creates a sequence by applying the following algorithm: Step 1: Alicia writes down the number as the first term of the sequence. Step 2: If is even, Alicia sets . If is odd, Alicia sets . Step 3: Alicia writes down the number as the next term of the sequence. Step 4: Alicia sets equal to the value of the term that she just wrote down in Step 3. Step 5: Alicia repeats Steps 2, 3, 4 until she has five terms, at which point she stops. For example, starting with , Alicia’s sequence would be 1, 4, 7, 16, 25. Alicia starts a sequence with . What is the fifth term of her sequence? A lock code is made up of four digits that satisfy the following rules: At least one digit is a , but neither the second digit nor the fourth digit is a . Exactly one digit is a , but the first digit is not . Exactly one digit is a . The code includes a , or the code includes a , or the code includes two s. How many codes are possible?Here’s a **quiz on Lesson 1: Introduction to Analog Communication (Unit 8)** based on your file 👇 --- # 🧠 **Quiz – Lesson 1 (Analog Communication)** **Marks:** 20 --- ## ✍️ **Part 1: Choose the correct answer (8 marks)** 1. A signal is: a) A device b) A physical quantity that carries information c) A type of wire d) A computer 2. A continuous signal is defined over: a) Discrete values b) Infinite real values c) Only integers d) Binary values 3. Digital signals have: a) Infinite values b) Two values (0 and 1) c) Random values d) Analog values 4. Sampling is used to: a) Increase noise b) Convert analog to digital c) Amplify signals d) Reduce bandwidth 5. A deterministic signal: a) Cannot be predicted b) Has known values c) Is always random d) Has no pattern 6. Even signal satisfies: a) x(t) = -x(-t) b) x(t) = x(-t) c) x(t) = 0 d) x(t) ≠ x(-t) 7. Periodic signal repeats after: a) Time T b) Infinite time c) No time d) Random time 8. A system is: a) A signal only b) Input only c) Takes input and gives output d) A wire --- ## ✍️ **Part 2: Complete (6 marks)** 1. A signal can be represented as __________. 2. Continuous signals are defined over __________ values. 3. Digital signals take values like __________ and __________. 4. A random signal cannot be __________ easily. 5. Odd signal satisfies __________. 6. A periodic signal repeats every __________. --- ## ✍️ **Part 3: True or False (6 marks)** 1. Analog signals are continuous. ( ) 2. Digital signals can take infinite values. ( ) 3. Sampling converts analog to digital signal. ( ) 4. Deterministic signals are predictable. ( ) 5. Odd signals pass through origin. ( ) 6. Aperiodic signals repeat over time. ( ) --- ## 🎯 **Bonus Question (Optional)** Give one example of: * Analog signal * Digital signal -