Blog

Find the indicated probability. Round to three decimal places.A test consists of 10 true/false questions. To pass the test a student must answer at least 9 questions correctly. If a student guesses on each question, what is the probability that the student will pass the test?

Use the given data to find the best predicted value of the response variable.Four pairs of data yield r = 0.942 and the regression equation . Also,  What is the best predicted value of y for ?

Below is a standard curve for Cobalt Chloride (CoCl2).  You measure the absorbance value of an unknown solution as 0.50.  What is the concentration of CoCl2 in your solution?

Calculate the mass concentration of a 10dL solution containing 200g of glucose. 

What Union General blasted his way past defenses of New Orleans in 1862

A mixture of gases containing 21.0 g of N2, 106.5 g of Cl2, and 12.0 g of He at 21°C is in a 8.00-L container. What is the partial pressure of He? (10pts)

What is the value of a quadruple-dotted quarter note? (Assume the quarter note is 1 beat) Formula needed:  

How many valence electrons does the Fe3+ cation have?  

This former president tried and failed at a peace effort in Feb. 1861

The John Brown Raid took place in