• Shuffle
Toggle On
Toggle Off
• Alphabetize
Toggle On
Toggle Off
• Front First
Toggle On
Toggle Off
• Both Sides
Toggle On
Toggle Off
Toggle On
Toggle Off
Front

### How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

Play button

Play button

Progress

1/13

Click to flip

### 13 Cards in this Set

• Front
• Back
 frequency distribution constructed by classifying indicidual obs into categories corresponsing to fixed numeric intervals and plotting the # of observations in each catgeory versus category descriptor normal distribution [median = mena] data desc by a bell shape (gaussian) curve w/ a max population mean best estimate of true value accuracy degree w/c measured value agrees w/ true value error (bias) difference between a measured value and true value median midmost value of data distribution less affected by "outliers" or skewed distribution mode most frequently occuring value useful for non-normal population variance used to desc the variability or spread of obs in a data dist finite # of observations samples variance (s2) can be used to desc variability or spread of observations in data distribution range used to desc the variability in data set largest-smallest std deviation most common encountered estimate of variability equal to square root of variance precision (reproducibility) degree w/c replicated measurements made in exactly the same way agree w/ each other often expressed as relative std dev (rsd, %rsd) % RSD (S/X) X 100 std deviation of mean std error of the mean - estimate of variability or error in the mean obt fr n obs -used to establish confidence intervals for desc the mean of a data set or when comparing the means of 2 data sets