Question

to find probability, divide the number of _________ by the number of trials. a members b outcomes what is the probability she got a black jelly bean? a 1/4 b 1/3 c 1/2

Explanation:

The formula for probability is \(P=\frac{\text{number of favorable outcomes}}{\text{number of trials}}\). So, the first blank should be "outcomes".

For the second question, since no context about the number of black jelly - beans and total jelly - beans is given (assuming it's a standard probability question where if there are an equal number of black and non - black jelly beans, but if we assume a fair split among a set of options. If we assume a situation where there are 2 black and 2 non - black (total 4), \(P=\frac{2}{4}=\frac{1}{2}\) is incorrect. If there are 1 black and 3 non - black (total 4), \(P = \frac{1}{4}\). But if we assume a situation like 1 black, 1 red, 1 green (total 3), \(P=\frac{1}{3}\) is also incorrect. However, if we assume it's a mis - formatted question and the first part is about the formula (where the answer is "outcomes") and for the second part, if we assume a 2 - color split (black and non - black) with equal numbers (but no, if total trials are 4 and favorable are 1, \(P=\frac{1}{4}\)). But based on the formula \(P=\frac{\text{number of favorable outcomes}}{\text{number of trials}}\), for the first fill - in - the - blank, "outcomes" is correct.

Answer:

For the first question: B. outcomes
For the second question: A. 1/4