Answer:
D.
Step-by-step explanation:
Answer:
Answer is 3/4
Step-by-step explanation:
Standard deviation=4.
let the mean be 12 and the score be 0 (therefore 12 point difference.)
0-12/s=-3 (s being standard deviation)
-12/4 = -3
5+4+7+2=18
18-2=16
16/18
88% chance of selecting a marble that isnt white
