EXPERIMENTAL ERROR

Question 1

Differences from measurement to measurement

Answer 1

EXPERIMENTAL ERROR

Question 2

When an experiment consisting of several steps involved, the entire experiment is ____________________ to increase the accuracy of the result

Answer 2

repeated several times

Question 3

measure of the amount of variation due to differences among individuals

Answer 3

STANDARD DEVIATION

Question 4

measure of how much the measurements differs from one another and from the average or the mean value

Answer 4

STANDARD ERROR OF THE MEAN

Question 5

square-root of the summation of the difference between the measurement and the mean squared divided by n-1

Answer 5

standard deviation

Question 6

the square of the difference between the measurement and the mean

Answer 6

variance

Question 7

standard dev divided by the square-root of the number of measurements

Answer 7

Standard Error of the Mean

Question 8

the difference between the highest and lowest measurement

Answer 8

Confidence interval

Question 9

We can estimate how large these errors are by

Answer 9

repeating the measurements;
using different instruments or methods;
doing the assays on different days

Question 10

One of this experiment’s purpose is to demonstrate the effect of replicate measurements in reducing the size of the error

Answer 10

EXPERIMENTAL ERROR

Question 11

Confidence Interval of Systematic Error is the same as the

Answer 11

Least Count

Question 12

RELATIVE ERROR FORMULA

Answer 12

(TOTAL ERROR / MEAN ) X 100

Question 13

Percentage Error Formula

Answer 13

(| EV - SV |/ SV ) X 100

Question 14

PERCENTAGE DIFFERENCE FORMULA

Answer 14

(( EV 1 - EV 2)/ (EV1 + EV2)/2) X 100