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Pessimistic Time when Standard Deviation is Known Solution

STEP 0: Pre-Calculation Summary
Formula Used
pessimistic_time = 6*Standard Deviation+Optimistic time
tp = 6*σ+t0
This formula uses 2 Variables
Variables Used
Standard Deviation- The Standard Deviation is a measure of how spread out numbers are.
Optimistic time - Optimistic time is the shortest possible time to complete the activity if all goes well. (Measured in Day)
STEP 1: Convert Input(s) to Base Unit
Standard Deviation: 40.83 --> No Conversion Required
Optimistic time: 120 Day --> 10368000 Second (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
tp = 6*σ+t0 --> 6*40.83+10368000
Evaluating ... ...
tp = 10368244.98
STEP 3: Convert Result to Output's Unit
10368244.98 Second -->120.002835416667 Day (Check conversion here)
FINAL ANSWER
120.002835416667 Day <-- Pessimistic time
(Calculation completed in 00.016 seconds)

11 Other formulas that you can solve using the same Inputs

Standard normal variation
standard_normal_variation = (Normal variate-Expected value)/Standard Deviation Go
PERT expected time
pert_expected_time = (Optimistic time+(4*Most likely time)+Pessimistic time)/6 Go
Standard error
residual_standard_error = Standard Deviation/sqrt(Number of samples) Go
Standard score
z_score = (value of n-Mean of data)/Standard Deviation Go
Z-Score
z_score = (Value of A-Mean of data)/Standard Deviation Go
Mean Using Z-Score
mean_of_data = Value of A-Z-score*Standard Deviation Go
Mean Using Coefficient Of Variation
mean_of_data = Standard Deviation/Coefficient of variation Go
Sample Coefficient Of Variation
coefficient_of_variation = Standard Deviation/Mean of data Go
Standard Deviation
standard_deviation = (Pessimistic time-Optimistic time)/6 Go
Variance
variance = ((Pessimistic time-Optimistic time)/6)^2 Go
Variance Of Data
variance = (Standard Deviation)^2 Go

1 Other formulas that calculate the same Output

Pessimistic Time when Expected Time is Known
pessimistic_time = 6*Mean time-Optimistic time-4*Most likely time Go

Pessimistic Time when Standard Deviation is Known Formula

pessimistic_time = 6*Standard Deviation+Optimistic time
tp = 6*σ+t0

What is Central Limit Theorem?

Central Limit Theorem states that if a project consist of large number of activities, where each activity has its own mean time, standard deviation and variance then the whole distribution of time for the project will be approximately a normal distribution.

How to Calculate Pessimistic Time when Standard Deviation is Known?

Pessimistic Time when Standard Deviation is Known calculator uses pessimistic_time = 6*Standard Deviation+Optimistic time to calculate the Pessimistic time, The Pessimistic Time when Standard Deviation is Known gives the maximum time required for the completion of a project under worst conditions. Pessimistic time and is denoted by tp symbol.

How to calculate Pessimistic Time when Standard Deviation is Known using this online calculator? To use this online calculator for Pessimistic Time when Standard Deviation is Known, enter Standard Deviation (σ) and Optimistic time (t0) and hit the calculate button. Here is how the Pessimistic Time when Standard Deviation is Known calculation can be explained with given input values -> 120.0028 = 6*40.83+10368000.

FAQ

What is Pessimistic Time when Standard Deviation is Known?
The Pessimistic Time when Standard Deviation is Known gives the maximum time required for the completion of a project under worst conditions and is represented as tp = 6*σ+t0 or pessimistic_time = 6*Standard Deviation+Optimistic time. The Standard Deviation is a measure of how spread out numbers are and Optimistic time is the shortest possible time to complete the activity if all goes well.
How to calculate Pessimistic Time when Standard Deviation is Known?
The Pessimistic Time when Standard Deviation is Known gives the maximum time required for the completion of a project under worst conditions is calculated using pessimistic_time = 6*Standard Deviation+Optimistic time. To calculate Pessimistic Time when Standard Deviation is Known, you need Standard Deviation (σ) and Optimistic time (t0). With our tool, you need to enter the respective value for Standard Deviation and Optimistic time and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Pessimistic time?
In this formula, Pessimistic time uses Standard Deviation and Optimistic time. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • pessimistic_time = 6*Mean time-Optimistic time-4*Most likely time
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