*NURSING > AQA Questions and Marking Scheme > NURS 5366 week 5 Nursing Research Statistics (All)
descriptive Statistics Correct Answer: computed to reveal characteristics of the sample and to describe study variable How to describe a sample Correct Answer: create a frequency distribution of ... the variable or variable being studied - is a plot of one variable, whereby the x-axis consists of possible values of that variable , and the y - axis is tally of each value Inferential Statistics Correct Answer: computed to draw conclusions and make inferences about the greater population, based on the sample data set. Bi Modal Correct Answer: having or providing two modes, ,methods, systems, etc. -having 2 values/categories that have highest occurrence and are equal frequencies Central Tendency Correct Answer: indicator of center of data -nominal variable= categorical differences EX: gender (tendency of samples of given measurement to cluster around some central value. Measures of Central tendency are descriptive statistics. Statistics represent measures of central tendency are mean, median and mode (all are representations or descriptions of the center or middle of a frequency distribution mean= arithmetic average of all of the values of a variable. median= exact middle value ( or average of the middle two values if there is an even number of observations) mode= most commonly occurring value in a data set. can have more than one mode in a sample. in a normal curve, mean, median and mode are equal or approximately equal Multimodal Correct Answer: having more than 2 modes Unimodal Correct Answer: When distribution only has one mode [Show More]
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