Perform the indicated operations and simplify the result.
+ 
+ 
A. 
B. 
C. 
D. 
Answer: D
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Provide an appropriate response.Which of the following is not possible?
A. A distribution is right-skewed and the mean is greater than the median B. A distribution has a single peak and the mean and median are different C. A distribution is not symmetric and the median is equal to the mean D. A distribution is left-skewed and the mean is equal to the median
Use the indicated formula to find the sum.Use S = 
to find the sum of 1 + 2 + 3 + . . . + 300.
A. 4515 B. 44,850 C. 45,000 D. 45,150
Solve the problem.The accompanying figure shows the graph of y = -x2 shifted to a new position. Write the equation for the new graph.
A. y = -(x + 5)2 B. y = -x2 + 5 C. y = -(x - 5)2 D. y = -x2 - 5
Use the data set {d1, d2, d3, ..., d255} consisting of 255 numbers to answer the following question(s).After sorting the data set (in increasing order from left to right), the median is
A. the sum of all the numbers divided by 255. B. the average of the numbers in the 127th and 128th positions. C. the number in the 127th position. D. the number in the 128th position. E. none of these