Presentation of Data; Tally Marks; Frequency MCQs
Practice Presentation of Data; Tally Marks; Frequency multiple-choice questions from Statistics (Class 9 Maths) - tap an answer for instant feedback and a step-by-step solution. Practice the full set free on the RankByte app.
Presentation of Data; Tally Marks; FrequencyQuiz - Solve & Score
Q1. Class mark of 25-35?
- A.30
- B.60
- C.10
- D.31
Answer: A. 30
Given 25, -35, asked for the unknown. Apply the standard chapter relation to the data. = (25+35)/2 = 30. Consequently option A) 30. Others fail: option B) '60' is incorrect: Mean of limits; option C) '10' misses the point - Class size.
Q2. Class mark of 50-60?
- A.55
- B.110
- C.10
- D.56
Answer: A. 55
Given 50, -60, asked for the unknown. Apply the standard chapter relation to the data. = (50+60)/2 = 55. Thus option A) 55. Others fail: option B) '110' is wrong because Mean of limits; option C) '10' is wrong because Class size.
Q3. Class mark of 70-80?
- A.75
- B.150
- C.10
- D.76
Answer: A. 75
Given 70, -80, asked for the unknown. Apply the standard chapter relation to the data. = (70+80)/2 = 75. Consequently option A) 75. Others fail: option B) '150' misses the point - Mean of limits; option C) '10' misses the point - Class size.
Master Presentation of Data; Tally Marks; Frequency on RankByte
Step-by-step solutions, mock tests, live ranks and streaks - free to start.
Get early access