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A car enters a curved road at speed of 100km/h and slows down with constant decelaration to 50km/h in 12 sec. Accelerometer mounted inside the car records acceleration of 2meters square when the car is 6 second into the curve. determine the radius of curvature of the road at that point?
The weight for a group of 18 month-0ld girls are normally distributed with a mean of 24.4 pounds and a standard deviation of 2.6 pounds. Use the table to find the percentage of 18 month-old girls who weigh more than 27.8 pounds.
question 1current weekly demand forecast for an item follows a normal distribution with a mean of 100 units with a
An experiment consists of flipping the fair coin three times and noting the number of heads and tails. A random variable x is defined to be two times the number of heads plus the number of tails.
Jim and Mike go to a coffee shop during their lunch break and toss a coin to see who will pay. The probability that Mike will pay three days in a row is 0.125.
to evaluate the performance of a certain brand of alkaline battery researchers at a consumer testing laboratory measure
Almost 20% of the stratum was sampled compared to the second stratum where only 2% of the stratum was sampled. Will this phenomenon introduce bias into the above estimates?
If the shop does not want to give more than 1% of its customers a free lube and oil change service, how long should the guarantee be?
Test of product quality using human inspectors can lead to serious inspection error problems. To evaluate the performance of inspectors in a new company, a quality manager had a sample of 12 novice inspectors evaluate 200 finished products.
How many different sets of exactly 20 of the 23 people with reservations for coach seats are possible? (do you use permutations or combinations?)
the average drive to work for a sample of 6 teachers at a large high school is 17 miles. the standard deviation of this
A few years ago, the Department of Education published information about education in the United States. It reported the average amount (dollars per student) spent by public schools in each state during the prior school year.
An immediate adjustment will be made on any tire that does not last 50,000 miles." You purchased four of these tires. What is the probability that all four tires will last more than 50,000 miles?
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