The table shows the number of athletes who stretch before exercising and how many had injuries within the past year. Let S and NS be the events that an athlete stretches and doesn't stretch respectively. Also, Let I and NI be the events that a student has an injury and doesn't have an injury respectively. Use the table to find the following probabilities. Round to 4 places where possible. Injury in No injury in Total last year | last year Stretches 51 278 329 No Stretches 284 183 461 Total 335 461 790 If one athlete is chosen at random, find the following probabilities: a) p(1) = b) P(S or I ) = C) P( I S ) = d) P(NS |NI ) =