please help

Xylem Park hosts many expos to teach the public about plants. Last year's desert plant expo featured cacti. At the desert plant expo, the organizer took a sample of the plants. He found that 36 of the 49 plants in this sample were cacti. Among the 7900 plants at that expo, 5000 were cacti. For the organizer's sample, find and write with proper notation the population proportion and sample proportion of plants that were cacti. Write the proportions as decimals (not percentages) rounded to two decimal places. (a) Population proportion: (Choose one) = X 5 2 (b) Sample proportion: (Choose one) =[