You are interested in the development of language in bilinguals. You are able to

Question

You are interested in the development of language in bilinguals. You are able to locate five families in the world with -month-old toddlers who are learning both Portuguese and Mongolian simultaneously. Given that these are the families that fit this qualification, therefore, these five families are your study population. You test the children see how many words they can understand in Mongolian. The results are listed in the following table: the mean for this population. the following table. the variance and standard deviation for this population.

Explanation / Answer

Mean = (26 + 48 + 37 + 28 + 41) / 5

= 36

Sum of the squares SS = 100 + 144 + 1 + 64 + 25 = 334

Population Variance 2 = SS / N = 334/5

= 66.8

Population Standard Deviation = 66.8

= 8.1731

Toddler Number of words (X) X - (X - )2 A 26 -10 100 B 48 12 144 C 37 1 1 D 28 -8 64 E 41 5 25

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