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IceJOKER [234]
3 years ago
15

In a class of 32 students

Mathematics
1 answer:
topjm [15]3 years ago
5 0

Answer:

1.48 m

Step-by-step explanation:

mean is calculated as

mean = \frac{sum}{count}

Then the sum for the 14 boys is

\frac{sum}{14} = 1.56 ( multiply both sides by 14 )

sum = 21.84 m

The sum for the class of 32 is

\frac{sum}{32} = 1.515 ( multiply both sides by 32 )

sum = 48.48 m

Thus the sum for the 18 girls is

sum = 48.48 - 21.84 = 26.64 m

Then mean height of girls is

mean = \frac{26.64}{18} = 1.48 m

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