Concept explainers
For Exercises 1-5, choose the correct letter.
There are 8 jellybeans in a bag. The probability of randomly picking two orange jellybeans without replacement is
How many orange jellybeans are in the bag?
- 3 orange jellybeans
- 5 orange jellybeans
- 4 orange jellybeans
- 6 orange jellybeans
Find the number of orange jellybeans in the bag.
Answer to Problem 5STP
B
Explanation of Solution
Given:
There are 8 jellybeans in a bag.The probability of randomly picking two orange jellybeans without replacement is
Formula Used:
Calculation:
Total number of jellybeans in the bag = 8
Let orange jellybeans in the bag = x
Number of favourable outcomes of orange jellybeans in first pick = x
Total number of jellybeans left after first pick , without replacement = 7
Number of favourable outcomes of orange jellybeans in second pick = x -1 (since first pick is without replacement)
Since the number of jellybeans cannot be negative, so , there are 4 orange jellybeans.
Hence , the correct option is B.
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