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61) The correlation coefficient is a number between ________.

A) 0 and +1

B) -1 and 0

C) -1 and +1

D) -2 and +2

62) The correlation coefficient for two variables that are not linearly related will be equal to ________.

A) 1

B) 2

C) 0

D) 3

63) What does a positive correlation coefficient indicate?

A) When one variable increases, the other variable decreases.

B) When one variable increases, the other variable also increases.

C) When one variable decreases, the other variable remains constant.

D) Both the variables are not linearly related.

64) What does a negative correlation coefficient indicate?

A) When one variable increases, the other variable decreases.

B) There is a nonlinear relationship between the two variables.

C) When one variable increases, the other variable increases by a smaller proportion.

D) A change in one variable does not lead to a change in the other variable.

65) The formal statistical measure for categorical data is called the ________.

A) sample mean

B) sample median

C) sample mode

D) sample proportion

66) Sample proportion is usually denoted as ________.

A) sp

B) p

C) p2

D) s

67) The subcategories of the variables in a contingency table must ________.

A) be mutually exclusive

B) sum up to a total of 1

C) be arranged in ascending order

D) lie between 0 and 1

68) A ________ displays the minimum, first quartile, median, third quartile, and maximum of a data set.

A) scatter plot

B) contingency table

C) box plot

D) stacked column chart

69) In a box-and-whisker plot, the whiskers represent the ________.

A) Q1 and Q3

B) minimum and maximum values

C) median and mode

D) cumulative frequencies

70) In a box plot, the outer boundaries of the box represent the ________.

A) interquartile range

B) median and mode

C) minimum and maximum

D) outlier values

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