Question

Following was determined for an activity
Optimistic Time = 4 days Pessimistic Time =
12 days Most likely time = 5 days What will
be the variance for activity?
O 1.33
O 1.768
O 1.15
O 1.13​

Answer 1

Given:

Optimistic Time = 4 days

Pessimistic Time =  12 days

Most likely time = 5 days

To find:

What will  be the variance for activity?

O 1.33

O 1.768

O 1.15

O 1.13​

Solution:

There are three types of Estimations.

1) Optimistic Estimate:

• This is the shortest duration of time in which an activity/project can be done. It is denoted by ''To''.

2) Pessimistic Estimate:

• This is the longest duration of time in which an activity/project can be done. It is denoted by ''Tp''.

3) Most Likely Estimate:

• This is the estimation of the general time in which the activity/project can take place. Here, the chance of finishing an activity/project is highest. It is denoted by ''Tm''.

Formula to find the variance of an activity:

$=> (\dfrac{Tp - To}{6})^2$

''Tp'' is Pessimistic time and ''To'' is Optimistic time.

Tp is given as 12 days

To is given as 4 days.

$=> (\dfrac{Tp - To}{6})^2$

$=> (\dfrac{12 - 4}{6})^2$

$=> (\dfrac{8}{6})^2$

$=> \dfrac{8 \times 8}{6 \times 6}$

$=> \dfrac{64}{36}$

$=> 1.77$

Hence, among the given options the required answer is 1.768

Answer 2

Answer:

Explanation:5. If 4u + 3 = 6 + 2u, then u = _________.