1. Chapter 15 Class 9 Probability
  2. Serial order wise
  3. Ex 15.1

Ex 15.1, 13

Last updated at May 14, 2018 by

Slide1.JPG

  1. Chapter 15 Class 9 Probability
  2. Serial order wise
    3. Ex 15.1
    Examples →
Ask Download

Transcript

Ex 15.1, 13 In Q.1, Exercise 14.2, you were asked to prepare a frequency distribution table regarding the blood groups of 30 students of a class. Use this table to determine the probability that a student of this class, selected at random, has blood group AB. Total number of students = 30 Number of students with Blood group AB = 2 Probability = (๐‘๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘ ๐‘ก๐‘ข๐‘‘๐‘’๐‘›๐‘ก๐‘  ๐‘ค๐‘–๐‘กโ„Ž ๐‘๐‘™๐‘œ๐‘œ๐‘‘ ๐‘”๐‘Ÿ๐‘œ๐‘ข๐‘ ๐ด๐ต)/(๐‘‡๐‘œ๐‘ก๐‘Ž๐‘™ ๐‘›๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘ ๐‘ก๐‘ข๐‘‘๐‘’๐‘›๐‘ก๐‘ ) = 3/30 = 1/10

Chapter 15 Class 9 Probability
Serial order wise

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 7 years. He provides courses for Mathematics and Science from Class 6 to 12. You can learn personally from here https://www.teachoo.com/premium/maths-and-science-classes/.
Jail