Percentage of group scored
If scores on a test are normally distributed, the average score is 120 with a standard deviation of 5. Which percentage of group scored between 112 and 123?
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How long will it take for the concentration of nickel to reach 0.1wt%, 1.0mm below the interface? What does the comparison of the two answers show?
What was the present worth of SWA's savings per gallon if the interest rate was 10% per year? And can you please tell me how you get the answer?
Assume the incomes of cab drivers are normally distributed. If the average salary is $25,000 and the standard deviation is $2,300, what are the boundaries of the middle 40%?
What is the present worth of the vaccines if there are 10 million beneficiaries in year 1 and an additional 15% each year through year 5? Use an interest rate of 8% per year.
Determine the magnitude of the velocity of the peg P at this instant. Determine the magnitude of the acceleration of the peg P at this instant.
Use the inclusion-exclusion principle from the last homework to show that the number of surjections from Nm to Nn is given by n^m - (n choose 1)((n-1)^m) + ... + ((-1)^n-1)(n chooce n-1)(1^m)
when theta=2pi/3 , the angular velocity and angular acceleration of the circular plate are theta dot= 1.7 rad/sec. Determine the magnitude of the velocity of the rod AB at this instant.
Assuming a theoretical efficiency of 32 percent and a steam inlet temperature of 290 degrees C, calculate the effective outlet temperature.
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