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Ex. 1. If weekly wage of 10,000 workers in a factory follows normal distribution with a mean and s.d. Rs. 70 and Rs. 5 respectively, find the expected number of workers whose weekly wages are (i) between Rs. 66 and Rs. 72 (ii) less than Rs. 66 (iii) more than Rs. 72
[ Given that 1/√2Π 0∫Πe-t2/2 dt = 0.1554 and 0.2881 according as z=0.4 and z=0.8 ]
Ex. 2. The mean of a normal distribution is 50 and 5% of values are greater than 60. Find the standard deviation of the distribution (Given that the area under normal curve between z=0 and z= 1.64 is 0.45)
question given the following objective function for a linear programming modelmaxz 2x1 3x21. draw a graph that shows
Using the shell method to find the volume of a solid revolving about line x = 2 by the region bounded by y=x^3 +x +1, y=1 and x=1.
AIR POLLUTION According to the South Coast Air Quality Management District, the level of nitrogen dioxide, a brown gas that impairs breathing.
Use exponential smoothing to find the forecast of shipments
There are infinitely many stations on a train route. Suppose that the train stops at the first station and suppose that if the train stops at a station, then it stops at the next station. Show that the train stops at all stations.
The car is repossessed, and it is sold for $3,000. How much money will Dane receive? How much money will Liv receive?
An open tank has the shape of a right circular cone (see figure). The tank is 8 feet across the top and 6 feet high.
a teacher has determined that the amount of time a student spends working on homework during seminar is a normal random
Use the properties of exponents to simplify the expression. Assume all variables represent positive real numbers.
Fertilizer A contains 5 units of phosphate, 2 units of nitrate and 2 units of ammonium. Fertilizer B contains 3 units of phosphate, 3 units of nitrate and 5 units of ammonium. How many pounds of each fertilizer should the shop use in order to mini..
At a product price of $33, will this firm produce in the short run? If it is preferable to produce, what will be the profit-maximizing or loss-minimizing output? What economic profit or loss will the firm realize per unit of output?
Find the Taylor series of Tan(x) around the point x = 0. Use a graphing calculator to sketch (or print) the order x, x^3, and x^5 approximation.
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