RD Sharma Class 12 Solutions Chapter 32 Mean and variance of a random variable Ex 32.2 These Solutions are part of RD Sharma Class 12 Solutions. Here we have given RD Sharma Class 12 Solutions Chapter 32 Mean and variance of a random variable Ex 32.2. We hope the RD Sharma Class 12 Solutions Chapter 32 … [Read more...] about RD Sharma Class 12 Solutions Chapter 32 Mean and variance of a random variable Ex 32.2