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Complete Question:
a) Is it plausible that X is normally distributed?
b) For a random sample of 50 such pairs, what is the (approximate) probability that the sample mean courtship time is between 100 min and 125 min?
Answer:
a) It is plausible that X is normally distributed
b) probability that the sample mean courtship time is between 100 min and 125 min is 0.5269
Step-by-step explanation:
a)X denotes the courtship time for the scorpion flies which indicates that is a real - valued random variable, and since normal distribution is a continuous probability distribution for a real valued random variable, it is plausible that X is normally distributed.
b) Probability that the sample mean courtship time is between 100 min and 125 min




From the probability distribution table:


Answer:
We can compute this in 2 ways:
305 downwind - 260 still air = 45 mph wind velocity
260 still air - 215 downwind = 45 mph wind velocity
Step-by-step explanation:
Answer:
Answered
Step-by-step explanation:
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Answer:
the answer is D {-5, -13}