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Fred takes his geocaching very seriously. He has found out that the time time it takes him to complete a cache from arriving at the parking place, finding the cache and returning to his car, can be modeled by a probability density function given by:
P(t)=ke-ktWhere t is the time in minutes that he takes to do a cache and k is a constant.
By integrating this function he can find the probability of finding a cache in a certain time. Fred knows that he completes 50% of his caches in 56 minutes and 13.8 seconds.
How long does it take Fred to complete 20% of his caches? This time is the Easting of the co-ordinates of the cache in minutes.
How long does it take Fred to complete 47.328% of his caches? This time is the minutes part of the Northing of the location of the cache. The Northing is given by 51 degrees and X minutes. X is the number you just found.
A vertical right circular cylindrical tank measures 24 ft high and 14 ft in diameter. it is full of oil weighing 60 lbs/ft^3. How long will it take a 1/2 horsepower pump, rated at 275 ft x lbs/sec to pump the oil to the level of the top of the tan..
The Jacksons plan a 3-Week trip with a budget of $600 for renting a car. Car rental rates are $135/week plus $0.17/km. Write a formula to show the number of kilometers the Jacksons can travel.
A box with a square base has length plus girth of 108 in. (Girth is the distance "around" the box.) What are the two possible lengths of the box, if its volume is 2000 in?
Matlab Richardson extrapolation, Write a Richardson extrapolation code and test it using f(x) = sin(x), x = 1.230959415400000
A total of 393 tickets were sold for the school play. They were either adult tickets or students tickets. There were 57 fewer student tickets sold than adult tickets. How many tickets were sold?
What sample size would the economist need to use if he wants a 95% confidence interval no wider than plus or minus $100?
A scientist writes an article in a scientific journal which claims that fewer than 9 in ten thousand male fireflies are unable to produce light due to a genetic mutation.
given four 1's and four 0's,how many ways these 8 symbols be listed such that in each list the number of 0's never exceed number of 1's as a list is read from left to right?List all the possible arrangements?
An airplane is flying at an elevation of 5150 ft, directly above a straight highway. Two motorists are driving cars on the highway on opposite sides of the plane, and the angle of depression to one car is 32° and to the other is 54°. How far apart..
Find the equation of a sphere of radius 3 which is tangent to both the planes x-2y+2z=3 and 3x+4z=8
what is the probability that the mean breaking strength of the 5 untreated specimens exceeds 50 pounds? what is the probability of the mean breaking strength of the 5 treated specimens exceeds 50 pounds?
Use the arc length formula to find the length of the curve
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