Find the value of x. A. 60 B. 40 C. 30 D. 50
2 answers:
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Answer:
Step-by-step explanation:
Data provided in the question:
Number of cups of tea offered = 3
Number of cups marked = 9
Number of cups tasted by each = 4
Now,
The probability that a contestant does not taste all of the samples
= contestant tastes only 2 samples of tea
=
C₆⁴ = number of ways to choose 4 cups out of 6 cups of two samples
C₃² = number of ways to choose which 2 samples will be tasted
[ as 2 samples × 3 cups each = 6 cups ]
C₉⁴ = Number of ways to choose 4 cups out of 9
=
Hence,
the correct answer is option (B) 5/14
Answer:
0.35
Explanation:
- P ( B and D )
- 0.5 * 0.7
- 0.35
<u>Follow the branch B and then branch D</u>
- multiply both the selected probabilities to calculate total probability.
