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The flying time of a drone airplane has a normal distribution with mean 4.76 hours and standard deviation of .04 hours. what is the probability that the drone will fly less than 4.66 hours?

2 Answers

2 votes

Final answer:

To find the probability that the drone will fly less than 4.66 hours, calculate the z-score and look up the corresponding probability in the standard normal distribution. A z-score of -2.5 indicates a probability of about 0.62%.

Step-by-step explanation:

To calculate the probability that the drone will fly less than 4.66 hours, we need to convert the flight time of 4.66 hours into a z-score. The z-score represents how many standard deviations an element is from the mean.

The formula to calculate the z-score is:

Z = (X - μ) / σ

Where:
X = Value we're interested in (4.66 hours)
μ = Mean (4.76 hours)
σ = Standard deviation (0.04 hours)

Calculating the z-score:

Z = (4.66 - 4.76) / 0.04 = -2.5

Now, we look up the z-score in the standard normal distribution table or use a calculator to find the probability to the left of that z-score, which gives us the probability that the drone will fly less than 4.66 hours. Typically, a z-score of -2.5 corresponds to a probability of approximately 0.0062 or 0.62%.

Therefore, the probability that the drone will fly less than 4.66 hours is about 0.62%.

answered
User Dika
by
7.8k points
4 votes
4.76+0.04.= 4.80 or 480
100
answered
User Ralphy
by
7.6k points
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