Seatwork #4

Which of the following is an example of continuous random variable?

• Average Height of Female Students in PCSHS

• Male Students in PCSHS

• Number of sleeping hours

• Family Members

Answer explanation

What does the standard deviation measure?

• The center of a data set.

• The spread of data around the mean

• The difference between the largest and the smallest values.

• The relationship between two variables.

What is a null hypothesis in hypothesis testing?

• A statement that there is a relationship between two variables.

• A statement that there is no relationship between two variables

• A statement about the sample data only.

• A prediction about the outcome.

What is the shape of a normal distribution?

• Skewed to the right

• Skewed to the left

• Bell-shaped and symmetric

• Uniform

What is the measure of the central tendency is most affected by outliers?

• Mean

• Median

• Mode

• Quartile

Answer explanation