Answer:
mean height of girls = 1.48 metres
Step-by-step explanation:
total height of all students = 1.515 x 32 = 48.48
total height of boys = 1.56 x 14 = 21.84
Total girls = 48.48 - 21.84 = 26.64
32 students - 14 boys = 18 girls
mean height of girls = 26.64/18 = 1.48 metres
