In a study of Tibetan children, a total of 1546 children were examined. Of these, 1017 had rickets. Of the 245 urban children in the study, 94 had rickets. (a) How many children living in nonurban areas had rickets?

1Your answer is incorrect.

(b) How many children living in nonurban areas did not have rickets?
2

a. 1017 - 94 = ?

b. 1546 - 245 - your previous answer = ?

To answer these questions, we need to analyze the given information.

Let's start with part (a): How many children living in nonurban areas had rickets?

We have gathered data on the total number of children examined (1546) and the number of urban children who had rickets (94). Now we need to subtract the number of urban children with rickets from the total number of children with rickets to find the number of nonurban children with rickets.

Total number of children with rickets - Number of urban children with rickets = Number of nonurban children with rickets

1017 - 94 = 923

Therefore, 923 children living in nonurban areas had rickets.

Moving on to part (b): How many children living in nonurban areas did not have rickets?

To answer this question, we need to subtract the number of children with rickets (from part a) from the total number of children examined.

Total number of children examined - Number of children with rickets = Number of children without rickets

1546 - 1017 = 529

So, 529 children living in nonurban areas did not have rickets.