Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class
Ex 15.1
Ex 14.1, 2 Important
Ex 14.1, 3
Ex 14.1, 4 (MCQ) Important
Ex 14.1, 5
Ex 14.1, 6 Important
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Ex 14.1, 8
Ex 14.1, 9
Ex 14.1, 10
Ex 14.1, 11
Ex 14.1, 12 Important You are here
Ex 14.1, 13
Ex 14.1, 14 Important
Ex 14.1, 15 Important
Ex 14.1, 16
Ex 14.1, 17
Ex 14.1, 18 Important
Ex 14.1, 19 Important
Ex 14.1, 20* (Optional) Important
Ex 14.1, 21
Ex 14.1, 22 Important
Ex 14.1, 23
Ex 14.1, 24 Important
Ex 14.1, 25 (i) Important
Ex 14.1, 25 (ii)
Last updated at May 29, 2023 by Teachoo
Ex15.1, 12 A game of chance consists of spinning an arrow which comes to rest pointing at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8 (see the given figure), and these are equally likely outcomes. What is the probability that it will point at 8? Total numbers = 8 Number of times we can get 8 = 1 Probability of getting 8 = ( 8)/( ) = 1/8 Ex15.1, 12 (ii) Odd number? Total numbers = 8 Odd numbers that can be the outcome = 1, 3, 5, 7 Number of odd number = 4 Probability of getting odd number = ( )/( ) = 4/8 = 1/2 Ex15.1, 12 (iii) Number greater than 2? Total numbers = 8 Number greater than 2 = 3, 4, 5, 6, 7, 8 Number of numbers greater than 2 = 6 Probability of getting number greater than 2 = ( 2)/( ) = 6/8 = 3/4 Ex15.1, 12 (iv) Number less than 9? Total numbers = 8 Number less than 9 = 1, 2, 3, 4, 5, 6, 7, 8 Number of number less than 9 = 8 Probability of getting number less than 9 = ( 9)/( ) = 8/8 = 1