At a grocery store blueberries come package an 8 ounce containers for $2.80 at a farmers market blueberries cost $4.20 for 14 ounces there are 16 ounces in 1 pound which statement accurately compares the cost of blueberries

Margie is practicing for an upcoming tennis tournament. her first serve is good 20 out of 30 times on average. margie wants to know the estimated probability that her first serve will be good at least four of the next six times she serves. how could she design a simulation for this scenario?