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Pessimistic Time given Expected Time Formula

GoPessimistic Time given Standard Deviation Formula

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A Pessimistic Time is the longest time that an activity could take if everything is wrong. Check FAQs

t p = 6 \cdot t e - t 0 - 4 \cdot t m

t_p - Pessimistic Time?t_e - Mean Time?t₀ - Optimistic Time?t_m - Most Likely Time?

Pessimistic Time given Expected Time Example

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With units

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Here is how the Pessimistic Time given Expected Time equation looks like with Values.

Here is how the Pessimistic Time given Expected Time equation looks like with Units.

Here is how the Pessimistic Time given Expected Time equation looks like.

10 = 6 \cdot 4 - 2 - 4 \cdot 3

10d = 6 \cdot 4d - 2d - 4 \cdot 3d

10 = 6 \cdot 4 - 2 - 4 \cdot 3

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Pessimistic Time given Expected Time Solution

Follow our step by step solution on how to calculate Pessimistic Time given Expected Time?

FIRST Step Consider the formula

t p = 6 \cdot t e - t 0 - 4 \cdot t m

Next Step Substitute values of Variables

∴

t p = 6 \cdot 4d - 2d - 4 \cdot 3d

Next Step Prepare to Evaluate

∴

t p = 6 \cdot 4 - 2 - 4 \cdot 3

Next Step Evaluate

∴

t p = 864000s

LAST Step Convert to Output's Unit

∴

t p = 10d

Pessimistic Time given Expected Time Formula Elements

Variables

Pessimistic Time

A Pessimistic Time is the longest time that an activity could take if everything is wrong.

Symbol: t_p

Measurement: TimeUnit: d

Note: Value should be greater than 0.

Formulas to find Pessimistic Time

Mean Time

Mean Time, also called expected time is the time needed to complete an activity.

Symbol: t_e

Measurement: TimeUnit: d

Note: Value should be greater than 0.

Formulas to find Mean Time

Optimistic Time

Optimistic Time is the shortest possible time to complete the activity if all goes well.

Symbol: t₀

Measurement: TimeUnit: d

Note: Value should be greater than 0.

Formulas to find Optimistic Time

Most Likely Time

Most Likely Time is the normal time activity would take.

Symbol: t_m

Measurement: TimeUnit: d

Note: Value should be greater than 0.

Formulas to find Most Likely Time

Other Formulas to find Pessimistic Time

Go Pessimistic Time given Standard Deviation

t p = 6 \cdot σ + t 0

Other formulas in Project Evaluation and Review Technique category

Go Mean or Expected Time

t e = \frac{t 0 + (4 \cdot t m) + t p}{6}

Go Optimistic Time given Expected Time

t 0 = (6 \cdot t e) - (4 \cdot t m) - t p

Go Most Likely Time given Expected Time

t m = \frac{6 \cdot t e - t 0 - t p}{4}

Go Standard Deviation of Activity

σ = \frac{t p - t 0}{6}

How to Evaluate Pessimistic Time given Expected Time?

Pessimistic Time given Expected Time evaluator uses Pessimistic Time = 6*Mean Time-Optimistic Time-4*Most Likely Time to evaluate the Pessimistic Time, The Pessimistic Time given Expected Time formula is defined as the maximum time required to complete the activity under the worst conditions. Pessimistic Time is denoted by t_p symbol.

How to evaluate Pessimistic Time given Expected Time using this online evaluator? To use this online evaluator for Pessimistic Time given Expected Time, enter Mean Time (t_e), Optimistic Time (t₀) & Most Likely Time (t_m) and hit the calculate button.

FAQs on Pessimistic Time given Expected Time

What is the formula to find Pessimistic Time given Expected Time?

The formula of Pessimistic Time given Expected Time is expressed as Pessimistic Time = 6*Mean Time-Optimistic Time-4*Most Likely Time. Here is an example- 0.000116 = 6*345600-172800-4*259200.

How to calculate Pessimistic Time given Expected Time?

With Mean Time (t_e), Optimistic Time (t₀) & Most Likely Time (t_m) we can find Pessimistic Time given Expected Time using the formula - Pessimistic Time = 6*Mean Time-Optimistic Time-4*Most Likely Time.

What are the other ways to Calculate Pessimistic Time?

Here are the different ways to Calculate Pessimistic Time-

Pessimistic Time=6*Standard Deviation+Optimistic Time

Can the Pessimistic Time given Expected Time be negative?

No, the Pessimistic Time given Expected Time, measured in Time cannot be negative.

Which unit is used to measure Pessimistic Time given Expected Time?

Pessimistic Time given Expected Time is usually measured using the Day[d] for Time. Second[d], Millisecond[d], Microsecond[d] are the few other units in which Pessimistic Time given Expected Time can be measured.

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Pessimistic Time given Expected Time Formula

​GoPessimistic Time given Standard Deviation Formula

Pessimistic Time given Expected Time Example

Pessimistic Time given Expected Time Solution

Pessimistic Time given Expected Time Formula Elements

Other Formulas to find Pessimistic Time

Other formulas in Project Evaluation and Review Technique category

How to Evaluate Pessimistic Time given Expected Time?

FAQs on Pessimistic Time given Expected Time

Variable Name

GoPessimistic Time given Standard Deviation Formula