Wind energy is fast becoming a major source of electricity in the U.S. Understanding the distribution of wind speeds is critical in the design of wind farms. Research published in the International Journal of Engineering, Science and Technology (Vol. 3, 2011) established the Weibull distribution as a good model for low to moderate wind speeds. For one area of India, wind speed Y (meters per second) had a Weibull distribution with parameters α = 2 and β = 10.

a. What is the value of E (Y)? Give a practical interpretation of this result.
b. What is the probability that the wind speed for this area of India will exceed 5 meters per second?