Answer:
68.3 inches
Explanation:
mean height of all the 13 students is 68.0 inches.
So, total height of 13 students = 68*13 = 884 inches
Height of Danielle = 72.2 inches
Total height of 14 students = 884 + 72.2 = 956.2 in
Mean height of 14 students = 956.2/14 = 68.3 inches