
Ex 13.4
Ex 13.4, 2
Ex 13.4, 3 Important
Ex 13.4, 4 (i)
Ex 13.4, 4 (ii)
Ex 13.4, 4 (iii) Important
Ex 13.4, 5 (i) Important
Ex 13.4, 5 (ii)
Ex 13.4, 6 Important
Ex 13.4, 7 Important
Ex 13.4, 8
Ex 13.4, 9
Ex 13.4, 10 Deleted for CBSE Board 2022 Exams You are here
Ex 13.4, 11 Important Deleted for CBSE Board 2022 Exams
Ex 13.4, 12 Important Deleted for CBSE Board 2022 Exams
Ex 13.4, 13 Important Deleted for CBSE Board 2022 Exams
Ex 13.4, 14 Deleted for CBSE Board 2022 Exams
Ex 13.4, 15 Deleted for CBSE Board 2022 Exams
Ex 13.4, 16 (MCQ) Deleted for CBSE Board 2022 Exams
Ex 13.4, 17 (MCQ) Important Deleted for CBSE Board 2022 Exams
Last updated at Feb. 15, 2020 by Teachoo
Ex 13.4, 10 Find the mean number of heads in three tosses of a fair coin.Ex 13.4, 10 Find the mean number of heads in three tosses of a fair coin.So the Probability distribution The mean number is given by 𝜇=𝐸(𝑥)=∑2_(𝑖 = 1)^𝑛▒𝑥𝑖𝑝𝑖 = 0 × 1/8+"1 ×" 3/8+ 2 × 3/8+ 3 × 1/8 = 0 + 3/8+ 6/8+3/8 = 12/8 = 3/2 = 1.5