plz give me heplful detailed explanation for understanding the answers!

3. In a casual conversation after class, Jane and Anne discover that they have a common habit. To relieve stress, they keep tabs on how frequently they can ring the recycle bin when throwing away a ball of paper. Jane brags that in 250 tosses, she rang the bin 128 times. In 265 tosses, Anne made 157 "baskets." Who is the better tosser? Why?The Statistical Imagination 4. As the statistician for a local high school basketball league, you are in charge of keeping points-scored statistics. In the games so far, Antonio "Hot Shot" Johnson has attempted 73 shots and made 34 while Clarence "Slam Dunk" Williams has attempted 52 shots and made 28. Which player has the higher scoring percentage? 5. In order to meet Environmental Protection Agency (EPA) guidelines, the quantity of particulate matter in the city's air can exceed 69 parts per million only 15 percent of the days in the year without incurring cautions. How many days is this? 6. Scott, Sam, and Sid, three friends who sack groceries at the local market, decided to pool their tips one afternoon to buy a gift for their friend Cindy, who was in the hospital. Scott put in $15, Sam $12, and Sid $10. What proportion of the gift money was contributed by each one? 7. Better Bodies Health Spa is to select 100 members to attend the Winter Olympics, half male and half female. Age groups are to be represented according to their proportional membership. In other words, if the membership is made up mostly of 31-to 40-year-olds, mostly this age group will make the trip. The chart below gives the membership breakdown by age and gender. Fill in the proportion (p) and number (# to attend) for each age group for each gender. Show the general formula and an example of the computation for at least one age group. # to # to Age Group Males Attend Females Attend 21-30 49 80 31-40 170 217 41-50 169 176 51-60 84 91 61+ 22 48 Totals 494 50 612 50