Answer:
2500
Step-by-step explanation:
it is a geometric progression
r=5
Answer:
2×9=9+9
Step-by-step explanation:
17 goes into 68 four times and goes into 51 three times.
Answer:
0.25
Step-by-step explanaition:
The z-score represents how many deviations a value is from the mean. When the bar measures 3.25, the z-score is +1. When the bar measures 3.50, the z-score is +2. You'll notice that whenever the bar size increases by 0.25, the z-score goes up +1. So, the standard deviation from the mean must be 0.25.
