1. There are 10, 000 combinations, you have 10 choices for the four digit and there are 10 x 10 x 10 x 10 which is 4-digit combination from 1-9. This is called combinations; the calculation comes out to 10^4.
Answer:
1/8
Step-by-step explanation:
3/4 is 6/8 and 6/8 - 7/8 is 1/8
Mean: 89
Median: 90
Mode: 94
Range: 12
Y=1 X=0
