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Answer : The length of the wire is, 8533 cm
Step-by-step explanation :
As the iron sphere is beaten and drawn into a wire. That means, their volume will be equal.
Volume of iron sphere = Volume of cylindrical wire
The formula will be:
where,
= radius of sphere =
= radius of cylindrical wire =
h = height of cylindrical wire or length of wire
Now put all the given values in the above formula, we get:
Therefore, the length of the wire is, 8533 cm
Answer:
0.211 = 21.1% probability that 2 flights of BlueSky Air arrive late
Step-by-step explanation:
For each flight, there are only two possible outcomes. Either they arrive late, or they do not. The probability of a flight arriving late is independent of any other flight. This means that the binomial probability distribution is used to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
BlueSky Air has the best on-time arrival rate with 80% of its flights arriving on time.
This means that 100 - 80 = 20% are late, which means that
Randomly selecting 16 BlueSky Air flights
This means that
What is the probability that 2 flights of BlueSky Air arrive late?
This is P(X = 2).
0.211 = 21.1% probability that 2 flights of BlueSky Air arrive late