Question

density graph for all of the possible times from 100 seconds to 300 seconds can be used to find which of the following

Answer 1

There is only one of the choices where the complete range is within the density graph, that is choice D.

Answer 2

Answer: D. The probability of a time from 150 seconds to 250 seconds.

Explanation:

We know that a density curve graph for all of the possible values from a to b can be used to find the the probability of the values from a to b .

Given: A density graph for all of the possible times from 100 seconds to 300 seconds.

Then it can be used to find the the probability of a time in the range from 100 seconds to 300 seconds.

From all the given option only option D gives the interval which is lies in the above range.

i.e A density graph for all of the possible times from 100 seconds to 300 seconds can be used to determine the probability of a time from 150 seconds to 250 seconds.