Input data and the model should be tested for accuracy before analysis and implementation. Which of the following is a good way to test the model? The model can be checked to make sure that it s logical, consistent, and represent the real situation. The model results can be compared with an earlier model’s data. Statistical tests can be employed to determine whether there are differences. The model can be evaluated to determine if it is the one with the lowest cost.

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step-by-step explanation:

$15 each

step-by-step explanation:

$45/3 children= $15 each

the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3