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The supervisor of a dairy milk chocolate factory has observed the weight of each 32g chocolate bar is aprox normally distributed with a mean 32.2g and standard deviation of 0.3g.a) find the probability that if a customer buys one chocolate bar, that bar will weigh less then 32g.b)find the probability that, if a customer buys a pack of four bars, the average weight of the four bars will be less than 32g.c)explain the difference between the results in part a and part b.
In a group of 97 students, the number taking English is twice the number of those taking Math. 53 students are taking one of these subjects and 15 are taking neither. How many students are taking math? How many are taking English?
Find an equation of the line tangent to the curve at the point corresponding to the value of the parameter.
Was the class effective? Use the alpha=.10 level of significance. Use the classical method to solve.
Assuming that both roads on the detour are straight, how many extra miles are you traveling to reach your destination?
Illustrate each of them with examples. Determine whether the following vectors in R3(R) are linearly dependent or linearly independent.
Let G be a group. x and y are elements of G. Prove that: The inverse of xy is y^-1x^-1. The identity element, e, is unique
Determine whether the binary relation R on Z, where aRb means a^2 = b^2, is reflexive, symmetric, antisymmetric, and/or transitive.
In a parking lot, there are 84 vehicles. All vehicles are either cars, trucks, or bicycles. There are twice as many trucks as bicycles, and twice as many cars as trucks.
Find the 99 percent confidence interval on the proportion of all such gloves that are shorter than nine inches.
At a certain time, the temp is maintained constant, the P=100ln/in^2 and is increasing at 4 lb/in ^2. At what rate is the volume changing when it is 60 in^3?
A 6.00 in radius cylindrical rod is 2 ft long. Use a differential to approximate how much nickel (in in^3) is needed to coat the entire rod with the thickness of .12 in.
As of December 31, 2010, Walton Corporation had a current ratio of 1.84, quick ratio of 1.45, and working capital of $18,000. The company uses a perpetual inventory system and sells merchandise for more than it cost.
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