Question

Out of 100 pictures of buses and trucks, 80 are actually buses and 20 are trucks. What is the minimum number of buses identified by a model to have a recall of 90% or more?

Topic	Evaluation (project cycle)
Type	Short  Answer Type
Class	10

Answer 1

Here the recall value is 90% i.e. >=0.9.

Now, recall = Fractions of True Positive. There are 80 buses identified correctly by model. Hence the True Positive cases are 80. So required True Positive cases = 0.9 x 80 = 72. Hence 72 buses have to be correctly identified to have a recall value of 90% or more.

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Study more about Evaluation at Evaluation Class 10