Assertion and reason

Exercise and reference answers

Questions

1. Reason

   It shows only how one total divides into parts.

   Verdict

   Both are true; the reason explains the assertion.

   Assertion

   A pie chart cannot show whether a total grew.

2. Reason

   It simply counts favourable outcomes against all outcomes.

   Verdict

   Both are true; the reason explains the assertion.

   Assertion

   The probability formula needs equally likely outcomes.

3. Reason

   A random experiment cannot be predicted in advance.

   Verdict

   Both are true; the reason does not explain the assertion.

   Assertion

   Data must be organised before inferences are drawn.

Explanation