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A cereal company randomly puts toy prizes in its cereal boxes. In the last 7 cereal boxes Denelle's family purchased, they got 2 of these toy prizes. Suppose Denelle's family buys 42 of these cereal boxes in the next year. How many toys can they expect to get based on their experience so far?

Sagot :

the rate of toys per cereal box is the following:

[tex]\frac{2\text{ toys}}{7\text{ C. box}}[/tex]

If this rate remains unchanged then for 42 cereal boxes the expected number of toys is:

[tex]\frac{2\text{ toys}}{7\text{ C. box}}\times42\text{ C. box=}12\text{ toys}[/tex]

Therefore, they can expect 12 toys.