Answer:

Step-by-step explanation:
Given
-- total
--- defective
--- selected
Required
The probability of rejecting the batch
This means that at least one of the selected piece is defected.
So, we first calculate the probability that all the selected piece are accepted.
So, we have:

The denominator decreases by 1 because it is a probability without replacement; 180 is subtracted from the numerator to represent the number of non-defective CDs
So, we have:


Using the complement rule, the probability that the batch will be rejected is:


Answer:
16,962
Step-by-step explanation:
Hope that helps lol.
Technically it's 2x subtracted by 1 and 8 more than that so:
(2x-1)+8
The answer is 4.8873, so you can say over 4 times as great, or almost 5 times as great for the first question.
And I think the second question could be because those over 35 years old have a more stable career, they're more developed skill-wise & worth more to their company so they're paid more, and of higher ranking in their professions, etc.
Answer:
No
Step-by-step explanation: