Question 1 (5 points)

_________ is when a person simply looks at the measuring instrument wrong. Parallax, looking from a wrong direction, is included in this category since it gives a false perspective when reading a measurement. Select the correct type of measurement error.

a	Gross error
b	Systematic error
c	Observational error
d	Random error

Question 2 (5 points)

_________ is an error that takes place due to ignorance or inexperience. Examples would be selecting the wrong measurement instrument or not understanding how the instrument works. Select the correct type of measurement error.

a	Gross error
b	Systematic error
c	Observational error
d	Random error

Question 3 (5 points)

_________ are errors caused by defects or issues with measuring instruments. Also, errors due to environmental issues are in this category. Select the correct type of measurement error.

a	Gross error
b	Systematic error
c	Observational error
d	Random error

Question 4 (5 points)

_________ are those where the sources can't be identified. To lessen the effect of these errors, several measures are taken, compared, and averaged. Select the correct type of measurement error.

a	Gross error
b	Systematic error
c	Observational error
d	Random error

Question 5 (5 points)

A person used an electronic scale to measure the weight of envelopes for mail. With no letter on the scale, the person recognizes that the machine indicates a weight of 2 ounces. The person realizes that all envelopes have been stamped 2 ounces heavier than their actual weight. What type of error has the person experienced?

a	Gross error
b	Systematic error
c	Observational error
d	Random error

Question 6 (5 points)

A chemistry student wants to find the volume of liquid in a beaker. Instead of looking at the fluid level horizontally, he looks at the fluid level by looking down at an angle and writes down the wrong volume. What type of error has the chemistry student experienced?

a	Gross error
b	Systematic error
c	Observational error
d	Random error