Calculation using Data Flashcards
(10 cards)
How do you calculate the mean?
Mean = (Sum of values) ÷ (Number of values).
What does a large range in data suggest?
Greater variability in the results.
Why do scientists use significant figures in calculations?
To match the precision of the measuring instrument.
What is an anomaly in scientific data?
A value that does not fit the expected pattern.
Why do we calculate percentage error?
To determine how accurate a measurement is compared to the actual value.
How do you calculate percentage error?
(Measured value – True value) ÷ True value × 100.
What does a high standard deviation mean?
Data points are spread far from the mean, indicating low precision.
What unit is used for measuring time in science?
Seconds (s).
What is an appropriate way to display data for easy interpretation?
Tables and graphs.
Why is unit conversion important in calculations?
To ensure consistency when comparing different measurements.
