Documentation/How Tos/Calc: CRITBINOM function

CALC FUNCTIONS

Statistical Functions

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FUNCTIONS

Measures of Central Tendency

• Avedev
• Average
• Averagea
• Count
• Counta
• Geomean
• Hearmean
• Median
• Mode
• Trimmean

Measures of dispersion / spread

• Devsq
• Kurt
• Skew
• Stdev
• Stedeva
• Stdevp
• Stdevpa
• Var
• Vara
• Varp
• Varpa

Probability and statistics

• B
• Betadist
• Betainv
• Binomdist
• Chidist
• Chiinv
• Chisqinv
• Chitest
• Confidence
• Critbinom
• Expondist
• Finv
• Fisher
• Fisherinv
• Fdist
• Ftest
• Gamma
• Gammainv
• Gammaln
• Gammadist
• Gauss
• Hypgeomdist
• Loginv
• Lognormdist
• Negbinomdist
• Norminv
• Normdist
• Normsinv
• Normsdist
• Permut
• Permutationa
• Phi
• Poisson
• Prob
• Standardize
• Tdist
• Tinv
• Ttest
• Weibull
• Ztest

Correlation and line fitting

• Correl
• Covar
• Forecast
• Intercept
• Pearson
• Rsq
• Slope
• Steyx

See also (in the Array Function category); GROWTH, LINEST, LOGEST, TREND

Ranking

• Large
• Max
• Maxa
• Min
• Mina
• Percentile
• Percentrank
• Quartile
• Rank
• Small

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CRITBINOM

Returns the smallest value for which the cumulative binomial distribution is greater than or equal to a criterion value.

Syntax:

CRITBINOM(n; p; a)

With n independent trials, each with a probability p of success, CRITBINOM returns the number of successes, up to and including which are expected with a probability a. See the examples to relate this to BINOMDIST.

CRITBINOM is useful in quality assurance procedures.

Example:

CRITBINOM(100; 0.5; 0.9)

returns 56.

BINOMDIST(56; 100; 0.5; 1)

returns approximately 0.9 (90%), the probability that heads will come up 56 or fewer times in 100 flips of a coin.

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