Question 11
MediumOriginal question3 bulbs are picked from a box of 10, of which 2 are defective. is the number of defective bulbs picked. What values can take?
Show the answer and explanation
CorrectNot quiteAnswer D
Correct answer: D
Explanation
At most 3 bulbs are picked, but only 2 defective ones exist.
So can be 0, 1 or 2.
Worth noting
3 is impossible: there are not 3 defective bulbs to pick.
- Concept
- The values of a random variable
- Typical timeTypical
- 90 s
- Your timeYours
- —
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