1.
Which type of data visualization is best for showing changes over time?

2.
Which measure of central tendency is most affected by outliers?

3.
What is the primary use of a scatter plot?

4.
What does a correlation coefficient of -1 indicate?

5.
What is the primary use of a 'cumulative frequency distribution'?

6.
What is the primary purpose of hypothesis testing?

7.
What does a high correlation coefficient indicate?

8.
Which test is used to determine if there is a significant difference between the means of two independent groups?

9.
In statistics, what is a sample?

10.
What does 'sample size' refer to in statistics?

11.
What is the primary purpose of hospital statistics?

12.
What is the purpose of the 'F-test' in statistics?

13.
In statistics, what is the term for the difference between the highest and lowest values?

14.
What does a p-value represent in hypothesis testing?

15.
What does a negative correlation coefficient indicate?

16.
Which statistic measures the average duration of patient stay in a hospital?

17.
What is the 'admission rate'?

18.
What does a t-test compare?

19.
What is the primary goal of exploratory data analysis?

20.
In a data set, what does the term 'outlier' refer to?

21.
What does the term 'case mix index' (CMI) reflect?

22.
What does 'data cleaning' refer to in the context of data analysis?

23.
What is the mean of the following numbers: 4, 8, 6, 5, and 7?

24.
What does the term 'skewness' refer to in statistics?

25.
What does 'sampling bias' refer to?

26.
In a normal distribution, what percentage of data falls within three standard deviations of the mean?

27.
What is 'exponential smoothing' used for in time series analysis?

28.
What does the term 'statistical significance' mean?

29.
Which of the following is NOT a type of probability distribution?

30.
What does 'data skewness' indicate?

31.
Which of the following is NOT a measure of dispersion?

32.
In a data set, what does 'data transformation' involve?

33.
In hypothesis testing, what is the null hypothesis (H0)?

34.
What does the median represent in a data set?

35.
Which measure of central tendency is least affected by extreme values?

36.
What does the term 'bed occupancy rate' measure?

37.
What is a 'normal distribution'?

38.
What is the purpose of a regression analysis?

39.
What is a Pareto chart used for?

40.
Which type of chart is best for showing proportions of a whole?

41.
What is a confidence level in the context of confidence intervals?

42.
Which of the following is a common indicator of hospital performance?

43.
What does the term 'bias' refer to in statistics?

44.
What does 'effect size' measure in statistical analysis?

45.
What is 'stratified sampling'?

46.
In a normal distribution, the mean, median, and mode are:

47.
What is the coefficient of determination (R²)?

48.
What is the purpose of a chi-square test?

49.
Which statistical measure is used to describe the average deviation of data points from the mean?

50.
In a box plot, what do the whiskers represent?

51.
What is the 'mean absolute deviation'?

52.
In a normal distribution, what percentage of data lies between the mean and one standard deviation above the mean?

53.
What does the term 'statistical power' refer to?

54.
Which of the following measures is used to describe the center of a data set?

55.
Which of the following is a non-parametric test?

56.
What is the purpose of a box plot?

57.
What does the interquartile range (IQR) measure?

58.
Which measure of central tendency is used for ordinal data?

59.
What is the standard deviation used to measure?

60.
If a data set is normally distributed, what percentage of data falls within one standard deviation of the mean?

61.
What does the term 'kurtosis' describe in a data set?

62.
Which statistic indicates the frequency of hospital readmissions?

64.
What is the purpose of a histogram?

65.
What is a contingency table used for?

66.
Which of the following best describes a bimodal distribution?

67.
What is the formula to calculate the bed occupancy rate?

68.
Which of the following statistical methods is used to test the difference between the medians of two independent groups?

69.
What does 'data normalization' involve?

70.
What is the 'law of large numbers'?

71.
What does the term 'sample space' refer to in probability theory?

72.
What is the purpose of a confidence interval?

73.
What does the 'patient turnover rate' indicate?

74.
What does 'hospital mortality rate' measure?

75.
Which of the following is a common measure of the 'spread' of a data set?

76.
Which of the following is NOT a type of statistical hypothesis?

77.
Which statistical test is used to compare the means of more than two groups?

78.
What is the mode of the following data set: 2, 3, 3, 5, 7?

79.
What is the variance of a data set?

80.
What is the primary use of a frequency distribution table?