Measures of central tendency

A measure of central tendency is the single numerical value that is considered the most typical of the values of a quantitative variable

• true

• false

The following odd series of numbers represent the grades obtained in a math quizz:

1,3,5,7,7,8,9.

For these numbers, the median is 7.

• true

• false

Which of the following options is a synonym of arithmetic mean:

• Range

• Mode

• Average

• Variance

Why do we say that a normal distribution is symmetrical?

• because both sides are different.

• because both sides are exactly the same.

• because it has a bell shape.

According to the next information:

Mode: 1

Median: 2

Mean: 3

the skewed distribution is:

• positively skewed

• negatively skewed