Answer:
-10
Step-by-step explanation:
-10
Answer:
30
Step-by-step explanation:
Each z-score = 1 standard deviation from the mean, so 18 + (6 x 2) = 30
Answer: B. I and ll only
Step-by-step explanation:
Answer:
The school store will need to replenish its supply of pencils every 48 days
Step-by-step explanation:
To find this, divide the number of pencils by the amount it sells per day.
1200/25 = 48