Dandelions are studied for their effects on crop production and lawn growth. In one region, the mean number of dandelions per square meter was found to be 8.0. Use the Poison distribution to find the indicated probabilites.
a. Find the probability of 6 dandelions in an area of 1 m ²
b. Find the probability of at least 6 dandelions in an area of 1 m ²
c. Find the probability of at most 7 dandelions in an area of 1 m ²