One hundred adults and children were randomly selected and asked whether they spoke more than...

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2021-01-27

One hundred adults and children were randomly selected and asked whether they spoke more than one language fluently. The data were recorded in a two-way table. Maria and Brennan each used the data to make the tables of joint relative frequencies shown below, but their results are slightly different. The difference is shaded. Can you tell by looking at the tables which of them made an error? Explain.
YesNoChildren0.150.25Adults0.10.6

Answer & Explanation

brawnyN

brawnyN

Skilled2021-01-28Added 91 answers

We determine the marginal relative frequencies using Marias

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