A is a characteristic whose value varies from one individual to another. O a. Parameter O b. Variable O c. Sample O d. Statistic The heights of a certain type of seedlings are normally distributed with mean 15.8 cm and standard deviation 1.5cm. A seedling is selected at random from a large batch of these seedlings. In a batch of 5000 of these seedlings approximately how many are expected to have heights above 14 cm? O a. 4420 O b. 3800 O c. 1200 O d. 575