=+23. Toy company. A toy company is preparing to market an electronic game for young children that “randomly” generates a color. They suspect, however, that the way the random color is determined may not be reliable, so they ask the programmers to perform tests and report the frequencies of each outcome. Are each of the following probability assignments possible? Why or why not?

Probabilities of …

Red Yellow Green Blue

a) 0.25 0.25 0.25 0.25

b) 0.10 0.20 0.30 0.40

c) 0.20 0.30 0.40 0.50

d) 0 0 1.00 0

e) 0.10 0.20 1.20 -1.50