i posted one & the answer is incorrect and i cant figure out how to get the correct answer

The Australian Open is the first of the four Grand Siam professional tennis events held each yeac Yictoria Ararenks beat Maria Stavapova to win the 2012. Australian Open women's title, During the toumament Ms. Azarenka's serve speed resched 183 kiometers per hour. A list of the 20 Women's Singles sene speed for the 2012 hustrallan Open is provided below. a. Compute the mean, variance, and standard deviation for the serve speeds (to 2 decimais). b. A similar sample of the 20 Women's Singles serve speed leaders for the 2011 Wimbledon tournament shoved a sample mean serve speed of I83.7 kilometers per hour. The variance and standard deviation were 37.55 and 5.70 , respectively. Discuss any difference between the serve speeds in the Australian Open and the Wimbledon women's toumaments. (i) The difference in the mean serve speeds is very smat and is most likely doe to randem variation in the players' performances: (ii) The sample mean serve speed and variation for the 2011 Wimbledon toumament was significantly higher. (ii) The sample mean serve speed and variation for the 2011 Wimbledon tournament was significantly lower. Choose the correct opton