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The 385-kg and 384-kg mine cars are rolling in opposite directions along the horizontal track with the respective speeds of 0.58 m/s and 0.35 m/s. Upon impact the cars become coupled together. Just prior to impact, a 142-kg boulder leaves the delivery chute with a velocity of 1.09 m/s in the direction shown and lands in the 385-kg car. Calculate the velocity v1 of the system after the boulder has come to rest relative to the car. Also, calculate the final velocity v2 if the cars were coupled before the boulder dropped. The velocities are positive if to the right, negative if to the left.
Find the probability that a randomly selected trading value exceeds 4.1 million and find the trading volume greater than 90% of all trading volumes. Use formula X1 = Z σ + µ
in a survey 42 of the repsondents stated they talk to their pets on the answering machine or telephone. a vet believed
examples of the binomial and poisson distributions are all around us. identify a real-life example or application of
suppose that john and david are shooting at a target. the probability that john hits the target is 17 and the
Show the sampling distribution of the mean amount of Medicare spending for a sample of fifty 2003 enrollees. What is the probability the sample mean will be within, plus or minus, $300 of the population mean?
Mention the experimental outcomes. Illustrate out a random variable threat that represents the number of heads occurring on the two tosses.
With a single-sample t ratio, the null hypothesis states that:
Assuming that the conditions for the binomial distribution are satisfied, what is the probability that the sample will lead Ziteck to reject the shipment if the defect rate is actually 0.05?
What is the probability that the variable will take the value 2? What is the mean of the distribution?
What is the probability of this event occurring if, in fact, the three cars shipped to dealer A were selected at random from the six produced?
in a community 40 of the population is smoker. i randomly choose 60 residents from that community and ask if each of
a regional director responsible for business development in the state of pennsylvania is concerned about the number of
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