A piece of paper is randomly selected from a stack that contains 15 small, 44 large, and 20 extra large pieces.
1 answer:
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Answer:
Step-by-step explanation:
Notice that Angle A is being bisected.
Hence, we can use the Angle Bisector Theorem to write the following proportion:
Solve for x. Cross-multiply:
Distribute:
Subtract 14x from both sides:
Add 50 to both sides:
Divide both sides by 6. Hence, the value of x is:
Answer:
The probability that 8 mice are required is 0.2428.
Step-by-step explanation:
Given : A scientist inoculates mice, one at a time, with a disease germ until he finds 3 that have contracted the disease. If the probability of contracting the disease is two sevenths.
To find : What is the probability that 8 mice are required? The probability that that 8 mice are required is nothing ?
Solution :
Applying binomial distribution,
Where, p is the probability of success
q is the probability of failure q=1-p,
n is total number of trials n=8
r=3
Substitute the values,
Therefore, the probability that 8 mice are required is 0.2428.