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Statistical functions – Apple Numbers '08 User Manual

Page 202

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202

Chapter 12

Dictionary of Functions

Statistical Functions

Statistical functions perform statistical calculations and require numeric expressions as
arguments. The numeric expression can be a number, cell reference, or range. Unless
otherwise stated, statistical functions result in a number.

Numbers provides these statistical functions.

Function

Description

AVEDEV (page 210)

Calculates the average difference (deviation) of data points from
their arithmetic mean (average).

AVERAGE (page 211)

Calculates the average (arithmetic mean) of a set of numbers.

AVERAGEA (page 211)

Calculates the average (arithmetic mean) of a set of values
including numbers, text, and Boolean values.

CONFIDENCE (page 216)

Returns a value for creating a statistical confidence interval for a
sample of a specified size from a population with a known
standard deviation; assumes values in sample are normally
distributed.

CORREL (page 217)

Calculates the correlation between two data sets based on linear
regression analysis.

COUNT (page 218)

Counts the number of arguments and referenced cells that contain
numbers, numeric expressions, or dates.

COUNTA (page 219)

Counts the number of arguments and referenced cells that are not
empty.

COUNTBLANK (page 220)

Counts the number of cells in a range that are empty.

COUNTIF (page 220)

Counts the number of cells in a range that satisfy a condition.

COVAR (page 224)

Calculates the covariance of two data sets.

FORECAST (page 233)

Calculates the y (dependent) value that corresponds to a chosen x
(independent) value by using linear regression analysis of known
value pairs.

INTERCEPT (page 238)

Calculates the y-intercept of the best-fit line for a data set using
linear regression analysis.

LARGE (page 242)

Retrieves the nth-largest value in a range.

MAX (page 247)

Finds the largest number in a set.

MAXA (page 248)

Finds the largest value in a set that includes numbers, text, and
Boolean values.

MEDIAN (page 248)

Finds the median value in a set of numbers.

MIN (page 249)

Finds the smallest number in a set.

MINA (page 249)

Finds the smallest value in a set that includes numbers, text, and
Boolean values.

MODE (page 251)

Finds the most frequently occurring value in a set of numbers.