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You are interested in computing the probability that you make under $500 in sales, which can be approximated by

Explain why a test with high accuracy may still produce a significant number of false positives.

Solve the following equations. Show your work on your worksheet to receive full credit. 9(3t-4)+63=0{“version”:”1.1″,”math”:”9(3t-4)+63=0″} _______

[Q16 – Q20] Choose the distribution best models each of the following statistical phenomena.

Translate each sentence into an equation and solve the resulting equation. Show your work on your worksheet to earn full credit. Twice the sum of a number and 4 is equal to 48.{“version”:”1.1″,”math”:”Twice the sum of a number and 4 is equal to 48.”} _______ Show your work on your worksheet to earn full credit. Find the number. _______

As a manager of a shop, you have an access to the past sales data, which indicates that the average daily sales is $800 with the standard deviation $120. 

Compute E[XY]. 

Translate each sentence into an equation and solve the resulting equation. Show your work on your worksheet to earn full credit. Three times a number plus fifteen is one hundred twenty-five.{“version”:”1.1″,”math”:”Three times a number plus fifteen is one hundred twenty-five.”} _______ Solve the resulting equation. Show your work on your worksheet to earn full credit. _______

In a class of 40 students, 25 students study Mathematics, 18 study Physics, and 10 study both subjects. What is the probability that a randomly selected person studies at least one of the two subjects? Provide three digits after the decimal point. Show your work on the scratch paper.

Simplify the expression. Use the distributive property to remove the parentheses. Remember to combine like terms whenever possible. 12z+3(z+6)+z{“version”:”1.1″,”math”:”12z+3(z+6)+z”} _______