Unit II

Question 1

mean

Answer 1

average of set of data

Question 1

standard deviation equation

Answer 1

Question 2

correlation study

Answer 2

analysis samples tested with two different methods and results are plotted on linear graph paper

Question 3

degrees of freedom

Answer 3

n-1

Question 3

coefficient of variation equation

Answer 3

Question 4

variance

Answer 4

sum of the squares of the deviations of the variables from the mean divided by the total number of variables less one

Question 5

Answer 5

coefficient of variation

Question 7

mathematical way to determine if there is a significant difference in the results obtained by two different methods for the same constituents

Answer 7

t-test

Question 8

Answer 8

Variance

Question 9

Gaussian distribution

Answer 9

another name for normal curve

Question 11

median

Answer 11

middle value

Question 11

most often repeated piece of data in a list of data

Answer 11

mode

Question 12

Answer 12

standard deviation

Question 12

average of set of data

Answer 12

mean

Question 13

mean, median, and mode are all the same

Answer 13

normal curve

Question 13

mean equation

Answer 13

Question 14

middle value

Answer 14

median

Question 15

dispersion of variables around the mean

Answer 15

standard deviation

Question 16

sum of the squares of the deviations of the variables from the mean divided by the total number of variables less one

Answer 16

variance

Question 17

normal curve

Answer 17

mean, median, and mode are all the same

Question 18

standard deviation

Answer 18

dispersion of variables around the mean

Question 19

mode

Answer 19

most often repeated piece of data in a list of data

Question 21

range

Answer 21

difference between the highest and lowest values in the sample

Question 22

n-1

Answer 22

degrees of freedom

Question 23

analysis samples tested with two different methods and results are plotted on linear graph paper

Answer 23

correlation study

Question 26

accuracy

Answer 26

measure of how close a value comes to the actual value

Question 27

t-test

Answer 27

mathematical way to determine if there is a significant difference in the results obtained by two different methods for the same constituents

Question 28

Answer 28

t-test

Question 29

measure of how close a value comes to the actual value

Answer 29

accuracy

Question 30

t-test equation

Answer 30

Question 31

measure of how well a measurement device can reproduce the sam measurement when repeatedly measuring one item

Answer 31

precision

Question 32

precision

Answer 32

measure of how well a measurement device can reproduce the sam measurement when repeatedly measuring one item

Question 33

coefficient of variation

Answer 33

makes comparisons between two different sets of data by either two different labs, procedures, or testing devices

Question 34

Variance equation

Answer 34

Question 35

makes comparisons between two different sets of data by either two different labs, procedures, or testing devices

Answer 35

coefficient of variation

Question 36

Answer 36

mean

Question 37

another name for normal curve

Answer 37

Gaussian distribution

Question 38

difference between the highest and lowest values in the sample

Answer 38

range

Question 39

1 SD expected percentage

Answer 39

68.2%

Question 40

2 SD expected percentage

Answer 40

95.4%

Question 41

3 SD expected percentage

Answer 41

99.6%