Compute probabilities - Study guides, Class notes & Summaries

BMAL 590 Quantitative Research Techniques Questions (solved to Pass). You take a random sample of 100 students at your university and find that their average GPA is 3.1. If you use this information to help you estimate the average GPA for all students at your university, then you are doing what branch of statistics? Descriptive statistics Inferential statistics Sample statistics Population statistics -A company has developed a new computer sound card whose average lifetime is unknown. In order t...

Excel's __________ can be used to construct a cross tabulation. Answers: a. COUNTIF function b. SUM function c. PivotTable Report d. Chart Tools - ANSWERSC. PivotTable Report To construct a pie chart using Excel's Chart Tools, choose __________ as the chart type. Answers: a. line b. column c. scatter d. pie - ANSWERSd. pie Excel's __________ function can be used to compute the sample covariance. Answers: a. COVARIANCE.S b. VAR c. CORREL d. MAX - ANSWERSa. COVARIA...

CPHRM Exam Guide Questions and CORRECT Answers Actuary - Correct ANSWER- a person who uses statistics to compute loss probabilities to establish premiums for insurance companies and self-insurance trusts. Advance directive - Correct ANSWER- lawful written instruction that describes an individual's preferences for health care should he or she become unable to express them later. Examples+ living wills, power of attorney for health care, advance health care directive. Adverse event - C...

True/False: Probability Tables PT(X) do not always sum to one correct answers FALSE True/False: Conditional Probability Tables CPT(X|Y=y) always sum to one correct answers TRUE True/False: Conditional Probability Tables CPT(X|Y) always sum to one correct answers FALSE True/False: Marginal distribution can be computed from joint distributions correct answers TRUE True/False: Two random variables X,Y are independent, if and only if P(X,Y)=P(X)P(Y) correct answers TRUE True/False: A ...

Addition law A probability law used to compute the probability of the union of two events. It is P(A ∩ B) = P(A) + P(B) − P(A ∪ B). For mutually exclusive events, P(A ∩ B) = 0; in this case the addition law reduces to P(A ∪ B) = P(A) + P(B). Basic requirements for assigning probabilities Bayes’ theorem A method used to compute posterior probabilities. Classical method A method of assigning probabilities that is appropriate when all the experimental o...

BMAL 590 Quantitative Research Techniques Final Exam Questions With Answers 2024 (GRADED) You take a random sample of 100 students at your university and find that their average GPA is 3.1. If you use this information to help you estimate the average GPA for all students at your university, then you are doing what branch of statistics? Descriptive statistics Inferential statistics Sample statistics Population statistics -A company has developed a new computer sound card whose average li...

Test Bank for BMAL 590 Quantitative Research Techniques and Statistics A+ Updated 1. Which one of the following would not be considered a state of nature for a business firm? 2. Assume an investment is made a significant number of times using the same probabilities and payoffs. In this case, the average payoff per investment represents_____. 3. The level of doubt regarding the decision situation where both the possible states of nature and their exact probabilities of occurrence are known as w...

ISDS Final Exam Questions With Correct Answers Probability is the a. number of successes divided by the standard deviation of the distribution. b. number of successes divided by the number of failures. c. numerical measure of the likelihood that an event will occur. d. chance that an event will not happen. - answernumerical measure of the likelihood that an event will occur. A __________ describes the range and relative likelihood of all possible values for a random variable. a. probab...

FIn 470 - Midterm 1 Exam Questions and Answers Risk - Ans:-numerical measure about the future payoff to an investment assessed over some time horizon Risk vs uncertainty - Ans:-risk can be quantified (measured) uncertainty can not 5 characteristics of Risk - Ans:-1. risk can be quantified - the riskier an investment the less desirable and the lower the price 2. risk arises because the future outcomes are unknown - we do not know which of many possible outcomes will follow in the future ...

BANA 2372 FINAL EXAM QUESTIONS AND ANSWERS ALL CORRECT statistical interference - Answer-The process of using data obtained from a sample to make estimates or test hypotheses about the characteristics of a population. -exp: In a sample of 800 students in a university, 160, or 20%are Business majors. the school reported "20% of all students at the university are Business majors". Variance - Answer-The descriptive measure NOT measured in the same units as the original data Excel's Cha...