In a class of 32 students

Mathematics

1 answer:

DerKrebs [107]3 years ago

4 0

Answer:

1.48 m.

Step-by-step explanation:

The number of girls in the class = 32 - 14 = 18 girls.

Sum of the boy's heights = 14 * 1.56 = 21.84 m.

Sum of all the student's heights = 32 * 1.515 = 48.48 m.

So the sum of the heights of the girls is 48.48 - 21.84

= 26.64 m.

So the mean height of the girls 26.64 / 18

= 1.48 m.

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