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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
The answer to this would be 40 because you multiply 12x0.30 and get 40 which mean 12 is 30% of 40 total
Step-by-step explanation:
Solve linear equation two variable