Rounding & S.F.
Bounds
Percentage Error
100
How many significant figures are in this number?
285
3
100
What are the formulas to calculate bounds?
Xmin=x-(p)/2
Xmax=x+(p)/2
100
What is the formula to calculate percentage error?
(Ve-Va)/(Ve)xx100
200
Round 4560.981045 to the nearest hundredth.
4560.98
200
Calculate the bounds for the measurement 38 kg, correct to the nearest 1 kg.
Write your answer in the form
Xmin<=X<Xmax
37.5kg<=x<38.5kg
200
Find the percentage error for a measured length of 3.2 cm and an actual length of 3.4 cm.
5.88%
300
Round 44905 to 2 s.f.
45000
300
Calculate the bounds for the measurement 4.2 s, correct to the nearest 0.1 s.
Write your answer in the form
Xmin<=X<Xmax
4.15s<= x<4.25s
300
Find the percentage error for an estimated population of 1.3 million and an actual population of 1,440,924.
9.78 %
400
How many significant figures are in 23.0090?
6
400
Calculate the bounds for the area of the rectangular garden with L=14ft and W=6ft, correct to 1 ft.
74.25<= A<94.25
400
Find the percentage error of an estimate of 2.72 for the number e, as shown on your calculator.
-0.063%
500
How many significant figures are in 0.0?
There are no s.f. in 0.0
500
Calculate the bounds of the volume of the rectangular prism with L=12in, W=5in, and H=3in, all correct to 1 in.
129.375 In^3<=V<240.625In^3
500
A rectangle has a L=5.2cm and W=3.9cm. Estimate the area of the rectangle and calculate the percentage error between your estimate and the dimensions given.
1.38%