Question

Let y be a random variable having a normal distribution with mean is 250 and standard deviation is 50, then find what is the value of k when P(250-k

Answer 1

Answer:

The empirical rule (68%, 95%, 99.7%) for mound shaped data applies to variables with normal distributions. For example, approximately 95% of the measurements will fall within 2 standard deviations of the mean, i.e. within the interval (µ − 2σ, µ + 2σ).