Indicate whether each of the following can be determined exactly or must be measured with some degree of uncertainty: (a) the number of eggs in a basket (b) the mass of a dozen eggs (c) the number of gallons of gasoline necessary to fill an automobile gas tank (d) the number of cm in 2 m (e) the mass of a textbook (f) the time required to drive from San Francisco to Kansas City at an average speed of 53 mi/h

The Following can be categorized by Exact or Uncertainly

(a) The number of eggs in a basket:Exactly

Because eggs is countable

(b) The mass of a dozen eggs:Uncertain

Because each egg can weigh differently

(c) The no of gallons of gasoline necessary to fill an automobile gas tank:Exactly

Because Volume of tank is known

(d) The number of cm in 2 m:Exactly

(e) The mass of a textbook:Exactly

(f) Time required to drive from San Francisco to Kansas city at an average speed of 53 mi/h: Uncertain

Because events like traffic and accidents might cause delay.