Twenty percent of the students in a class of 100 are planning to ...

[corkyiscool3328]

Twenty percent of the students in a class of 100 are planning to go to graduate school. The standard deviation of this binomial distribution is
 a. 20.
   b. 16.
   c. 4.
   d. 2.

Question 2

To determine how to crash activity times
 a. normal activity costs and costs under maximum crashing must be known.
  b. shortest times with crashing must be known.
  c. realize that new paths may become critical.
  d. All of the alternatives are true.

[meryzewe]

Answer to Question 1

c

Answer to Question 2

d

[corkyiscool3328]

TYSM

[alvinum]

Gracias!