Gerard

1.On a test the mean is 75 and the standard deviation is 5. A. What is the probability that a randomly selected score is higher than 80? B. What percentage of the students scored higher than 80? C. What percentage of the scores were less than 68? D. What...

A spherical mooring buoy 36cm in diameter with a mass of 43 kg is fastened to a cleat on the top ofthe sea wall by a 50 cm long line, as shown. The force against the sea wall is a. 73N b.87N c. 104N d.116N e. None of these

What is the molarity of a solution made by dissolving 2.00g of potassium chloride (KCl) in enough water to make 150 ml of solution?

Hi I am new my friend told me to get help here.please can you help me by telling me an easy method to solve this. 9y+2x=

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It is a simple problem, but if you are not at ease with conditional density functions one soon gets confused. The first thing you need to do is to introduce a second (discrete) random variable, Y, that represents the choice of the machine. So Y can take o...

mass pf proton is 1.67x10^-27 kg