BGS, BSGS Bachelor of General Studies Mathematics and Statistics

Question 1

What is the 'mean' of a data set?

Accepted Answer

The arithmetic average of all values

Answer

The mean is calculated by summing all values in a data set and dividing by the total number of values.

Question 2

Which measure of central tendency is least affected by extreme outliers?

Accepted Answer

Median

Answer

The median, the middle value when data is ordered, is resistant to outliers because it depends on position, not value magnitude.

Question 3

What does a probability of 0 mean for an event?

Accepted Answer

The event is impossible

Answer

A probability of 0 means there is no chance the event will occur; it is impossible.

Question 4

What is the formula for the area of a rectangle?

Accepted Answer

Length × Width

Answer

The area of a rectangle is found by multiplying its length by its width.

Question 5

In a normal distribution, approximately what percentage of data falls within one standard deviation of the mean?

Accepted Answer

68%

Answer

The empirical rule states that about 68% of data in a normal distribution falls within one standard deviation of the mean.

BGS, BSGS Bachelor of General Studies Practice Test