Xylem Park hosts many expos to teach the public about plants. Last year's desert plant expo featured cacti. Among the 9100 plants at the desert plant expo, 5700 were cacti. At that expo, the organizer took a samp|_e of 61 plants. He found that 39 of these plants were cacti. For the organizer's sample, find and write with proper notation the sample proportion and population proportion of plants that were cacti. Write the proportions as decimals (not percentages) rounded to two decimal places. (a) Sample proportion: (Choose one) Y (b) Population proportion: (Choose one} V I] I]