Initial diagnostic

1. Which of the following options is NOT a probability sampling method?

• Convenience sampling

• Simple random sampling

• Stratified sampling

• Sistematic sampling

1. If you have the following monthly sales data in thousands of dollars: 10, 15, 12, 18, 20, what is the median of these sales?

• 12

• 15

• 18

• 20

1. Which of the following statements about the mode is correct?

• The mode is not used in statistics.

• It is the highest value in the data.

• The mode is always equal to the median.

• It is possible to have more than one mode.

1. Temperature in degrees Celsius is a continuous quantitative variable.

• Verdadero
• FALSO

1. Qualitative variables are divided into two categories: nominal and ordinal.

• Verdadero
• FALSO

1. The number of children in a family is a continuous quantitative variable.

• Verdadero
• FALSO

1. Which of the following options best describes the purpose of a pie chart?

• To show the distribution of a continuous variable.

• To visualize relationships between two variables.

• To represent a fraction of a total in percentages.

• To compare trends between different characteristics.

1. Which of the following statements about line charts is true?

• They are ideal to visualize discrete variables.

• They show the distribution of a categorical variable.

• They connect points with line segments.

• They can't be used for seasonal data.

1. Which of the following statements about bar charts is correct?

• The height of the bar represents the absolute frequency of a category.

• They are used mainly for continuous data.

• Bar charts are mode adecuate for numeric data.

• The widht of the bar represents the percentage of a category.

1. What type of data is best represented by a histogram?

• Categorical data

• Continuos data

• Time series data

• Ordinal data.