Final answer:
Martina's batting average is calculated by dividing her 5 hits by her 6 at-bats, resulting in a batting average of 0.833, which is answer A.
Step-by-step explanation:
The student's question asks for the calculation of a batting average, which is a statistical measure used in baseball to determine a player's hitting success rate. In this case, Martina gets to bat 6 times and she gets 5 hits. To calculate her batting average, we divide the number of hits by the number of times at bat. Thus:
Batting Average = Number of Hits / Number of Times at Bat = 5 hits / 6 at bats = 0.833
Therefore, Martina's batting average is 0.833, which corresponds to option A. This places her batting average significantly above the league mean batting average which is given to be 0.280. The knowledge of the league mean batting average and the standard deviation of 0.06 helps to contextualize the excellence of Martina's performance compared to general expectations in the league.