The random variable X is distributed as B(200,0.7).Use the normal approximation to the binomial distribution to find P(136

Question

The random variable X is distributed as B(200,0.7).Use the normal approximation to the binomial distribution to find P(136<=X<148)

PsyDAG · Answer

Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability for between each.