Tom works at an aquarium shop cleaning reef tanks. His job is to drain the tank. How much water is initally in
1 answer:
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Answer:
Step-by-step explanation:
Comparing it with quadratic equation , we get:
a = 1 . b = 4 and c = 5
So,
Discriminant =
D = (4)²-4(1)(5)
D = 16 - 20
D = -4
Hence,
Discriminant = -4
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<h3 /><h3>~AH1807</h3>
Answer:
The probability that none of the LED light bulbs are defective is 0.7374.
Step-by-step explanation:
The complete question is:
What is the probability that none of the LED light bulbs are defective?
Solution:
Let the random variable <em>X</em> represent the number of defective LED light bulbs.
The probability of a LED light bulb being defective is, P (X) = <em>p</em> = 0.03.
A random sample of <em>n</em> = 10 LED light bulbs is selected.
The event of a specific LED light bulb being defective is independent of the other bulbs.
The random variable <em>X</em> thus follows a Binomial distribution with parameters <em>n</em> = 10 and <em>p</em> = 0.03.
The probability mass function of <em>X</em> is:
Compute the probability that none of the LED light bulbs are defective as follows:
Thus, the probability that none of the LED light bulbs are defective is 0.7374.