BINOM.INV

The BINOM.INV function returns the smallest value for which the cumulative binomial distribution is less than or equal to a specified criteria. It is used in statistical analysis to determine the probability of a certain number of successful trials. This is based on a fixed number of trials.

Syntax 🔗

=BINOM.INV(Trials, Probability_s, Probability_s, Cumulative)

Trials The number of independent trials.
Probability_s The success probability for each trial.
Probability_s The criteria probability.
Cumulative A logical value that determines the form of the function. If TRUE, the BINOM.INV function returns the cumulative distribution function; if FALSE, it returns the probability mass function.

About BINOM.INV 🔗

Use the BINOM.INV function in Excel to find the smallest number of successful outcomes within a set number of independent trials. This function helps you calculate the probability of achieving a certain number of successes in a given number of trials, useful in various statistical and decision-making contexts. Whether you are forecasting outcomes in experiments or determining event probabilities, BINOM.INV assists you in managing probability calculations in Excel.

Examples 🔗

Suppose you are conducting 10 independent trials with a success probability of 0.3 for each trial. You want to find the smallest number of successful outcomes such that the cumulative probability is less than or equal to 0.75. The BINOM.INV formula would be: =BINOM.INV(10, 0.3, 0.75)

Suppose you are planning 20 independent trials with a success probability of 0.6 for each trial. You aim to ascertain the smallest number of successful outcomes such that the cumulative probability is less than or equal to 0.5. The BINOM.INV formula would be: =BINOM.INV(20, 0.6, 0.5)

Notes 🔗

The BINOM.INV function assumes your specified probabilities and cumulative value are valid and within the range [0,1]. Ensure your parameters and arguments align with the specific requirements of your probability calculations and statistical analyses.

Questions 🔗

How does the BINOM.INV function determine the smallest value of successful outcomes?

The BINOM.INV function computes the smallest number of successful outcomes by evaluating the cumulative binomial distribution based on the specified criteria probability and the success probability for each trial. It returns the value for which the cumulative distribution is less than or equal to the criteria probability.

When should I use the TRUE or FALSE option for the Cumulative argument in the BINOM.INV function?

You should use TRUE for the Cumulative argument when you want the function to return the cumulative distribution function, providing the probability of getting up to the particular number of successful outcomes. On the other hand, using FALSE returns the probability mass function, delivering the probability of getting the exact number of successful outcomes specified.

Can I use the BINOM.INV function for non-integer values for the number of trials or success probability?

No, the BINOM.INV function is designed to work with whole number values for the number of trials and the success probability. It is tailored for discrete random variables and does not accommodate non-integer or continuous values.

BINOM.DIST
RAND
AVERAGEIF
SUMIFS

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