Please help me with this statistics question, I’m very stuck…

According to the normal model, what percent of receivers would you expect to gain fewer yards than 2 standard deviations below the mean number of yards

On a piece of paper, graph y< x-1. then determine which answer choicematches the graph you drew.13. z3. 2(3.290-1)

Will mark brainiest, , and rate to the best the table shows the number of blue marbles and red marbles that four friends have collected. which person has the lowest ratio of blue to red marbles? jasmineaaronluciangretchen