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69. A nurse informaticist analyzes a sample of data from a population and finds that all the observed values are close to the sample mean. Which conclusion does the nurse make? The standard deviation is close to zero. An error was made in the data analysis. The standard deviation is the same as the mean. The median of data is the same as the mean. 70. A nurse informaticist takes samples repeatedly in order to obtain accurate test results. What is true regarding this method? The distribution of the data set will be bimodal. The median of the samples will have a skewed distribution. The means of the samples will have a normal distribution. The means of the samples will have a uniform distribution