- 13 , 4 , 23 A data set of three numbers is shown. If a number from this data

Question

- 13 , 4 , 23 A data set of three numbers is shown. If a number from this data set is selected at random, what is the probability of selecting a negative number?

Accepted Answer

Choice B is correct. If a number from the data set is selected at random, the probability of selecting a negative number is the count of negative numbers in the data set divided by the total count of numbers in the data set. It's given that a data set of three numbers is shown. It follows that the total count of numbers in the data set is 3 . In the data set shown, - 13 is the only negative number. It follows that the count of negative numbers in the data set is 1 . Therefore, if a number from the data set is selected at random, the probability of selecting a negative number is 1 3 . Choice A is incorrect. This is the probability of selecting a negative number from a data set that doesn&rsquo;t contain any negative numbers. Choice C is incorrect. This is the probability of selecting a positive number, not a negative number, from the data set. Choice D is incorrect. This is the probability of selecting a negative number from a data set that contains only negative numbers.

Question 13-4-2