Statistics and Correlation

What type of correlation is shown?

If correlation value is 0.4, then what is correlation for that?

• No correlation

• Positive correlation

• Negative correlation

• None

Which of the following is a measure of variability?

• mean

• median

• mode

• standard deviation

The measure of dispersement in statistics is called ______

• Standard Deviation

• Mean

• Mode

• Median

What is relationship between two variables called?

• Relationship

• Internship

• Correlation

• norelation

To find the average or mean of a set of numbers, add up all the items and divide by...

• 2

• The minimum

• The maximum

• The number of items

The scatter plot as shown below illustrates a linear association. What correlation exists between the two data given?

• positive correlation

• negative correlation

• zero correlation

• undefined correlation

The average lot size of the houses in a small village is 55 square meters with a standard deviation of 10 square meters. Find the mean of the sampling distribution of the sample mean with a sample size of 50 houses if lot sizes are normally distributed.

• 50

• 10

• 55

• 60

If the variance of the sampling distribution of the mean is 9, what is the standard error?

• 3

• 9

• 81

• 18