Identify which level of measurement is represented by the following data.

Course grades in English 101: A, B, C, D, F

• interval
• ordinal
• nominal
• ratio

Whether you own a cell phone or not

• ratio
• ordinal
• nominal
• interval

Color of product packaging

• ordinal
• ratio
• nominal
• interval

Temperature in CEO's private office

• ordinal
• ratio
• interval
• nominal

Time of first class

• interval
• ratio
• ordinal
• nominal