Seattle Greenery In July in Seattle, the grass grows 1/2 in. a day on a sunny day and 1/4in. a day on a cloudy day. In Seattle in July, 75% of the days are sunny and 25% are cloudy.

• a) Determine the expected amount of grass growth on a typical day in July in Seattle.

let x - amount of grass growth

x = [1/2(365*.75) + 1/4(365*.25)] / 365

x = 136.875 + 22.8125 /365 = 0.44 inches

• b) Determine the expected total grass growth in the month of July in Seattle.

x = 0.44 (30 days) = 13.2 inches