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3 years ago

In a sample of 77 children , the mean age as at which they first began to combine words was 16.51 months

Mathematics

1 answer:

astraxan [27]3 years ago

7 0

Answer:

Mean age = 1271.27

Step-by-step explanation:

No of children = 77

The age at which children first began to combine words = 16.51 months

Mean age = No of children × age at which children first began to combine words

= 77 × 16.51

= 1271.27

Mean age = 1271.27

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