Stats Ch 2 Notation

The mean temperature in Glens Falls for the month of February is 23 degrees with a standard deviation of 4.2 degrees.  What is the z-score for a temperature of 17 degrees?  

• 1 
• 1.43
• -1.43
• 11.5

Find the area of the shaded region. 

• 0.1587

• 0.8413

• 0.6826

• 0.3413

Find the cumulative area that corresponds to a z-score of 1.25. 

• 0.89

• 0.01

• 0.79

• 0.12

Find the area under the standard normal curve to the right of z = -2.67.

• 0.0869

• 0.9962

• 0.0008

• 0.1234

What does this symbol represent?

• Standard Deviation

• Variance

• Mean Absolute Deviation

• Sigma

Define the symbol.

• population mean

• sample size

• sample mean

• sample standard deviation

In statistics, what does this symbol represent?

• mean

• population mean

• sample standard deviation

• population variance

Define the symbol.

• sample mean

• sample size

• sample standard deviation

• standard error

Find the area under the standard normal curve to the right of z =1.36.

• 0.0869

• 0.9962

• 0.0008

• 0.1234

Find the z-score such that 44% of the standard normal curve lies to the right of z. 

• -0.15

• -1.71

• 1.71

• 0.15