Solve the problem.The sum, S, of the first n positive integers is given by the following formula: S = 
. What is the sum of the first 17 positive integers?
A. 153
B. 76.5
C. 18
D. 9
Answer: A
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Which of the following uses theoretical probability? ?
A. ?Finding the probability of an outcome when rolling three dice. B. ?Finding the probability of an outcome when tossing a coin and then spinning a spinner. C. ?Theoretical Probability is commonly used in gambling. D. ?Experimental Probability can be used to determine the likelihood of a meteor hitting the Earth. E. ?As the number of trial increases, the probability of an event in an experiment approaches the theoretical probability.
A sample statistic and margin of error are given. Find the confidence interval likely to contain the population parameter of interest and answer the question.The CEO of a company claims that 90% of its employees have very high job satisfaction. A poll of the company's employees revealed that 88 percent had very high job satisfaction with a margin of error of 2.4 percentage points. Can we conclude that the CEO was lying?
A. 85.6% to 90.4%; no B. 88% to 90.4%; no C. 86.8% to 89.2%; yes D. 85.6% to 88%; yes
Factor completely, or state that the polynomial is prime.x3 - x2 + 7x - 7
A. (x2 + 7)(7x - 1) B. (x2 + 7)(x - 1) C. (x2 - 7)(x - 1) D. (x - 1)(x + 1)(x + 7)
Answer the following statement(s) true (T) or false (F)
Students must acquire procedural knowledge of a situation before engaging in exercises involving conceptual knowledge.