Conceptos Estadísticos Básicos

What is the formula to calculate the mean of a set of numbers?

• Sum of all numbers * Total count of numbers

• Sum of all numbers + Total count of numbers

• Total count of numbers - Sum of all numbers

• Sum of all numbers / Total count of numbers

Calculate the mean of the following numbers: 10, 15, 20, 25, 30

• 20

• 28

• 22

• 18

What is the median of the data set: 5, 10, 15, 20, 25?

• 30

• 15

• 20

• 10

Explain the concept of mode in statistics.

• The mode is the highest value in a data set.

• The mode is the middle value in a data set.

• The mode in statistics refers to the value that appears most frequently in a data set.

• The mode is the average of a data set.

Find the mode of the following data set: 2, 4, 4, 6, 8

• 8

• 6

• 4

• 2

Define range in statistics.

• The range in statistics is the difference between the largest and smallest values in a dataset.

• The range is the mode of all values in a dataset

• The range is the average of all values in a dataset

• The range is the sum of all values in a dataset

Calculate the range of the data set: 12, 15, 18, 21, 24

• 12

• 10

• 25

• 20

What does standard deviation measure in a data set?

• Dispersion or spread of data points around the mean

• Average of data points

• Median of data points

• Mode of data points

Calculate the standard deviation of the following numbers: 5, 10, 15, 20, 25

• 7.07

• 6.5

• 10.5

• 8.5

What is a histogram used for in statistics?

• To determine the correlation between two variables

• To represent the distribution of a continuous variable by showing the frequency of values within intervals.

• To identify outliers in a dataset

• To calculate the mean of a dataset