Answer: There are 45 boys
Step-by-step explanation:
3:4
60÷4=15
15×3
=45
Answer:
C. between 80 and 90
Step-by-step explanation:
430/5=86
Answer:
Compute alpha (α): α = 1 - (confidence level / 100)
Find the critical probability (p*): p* = 1 - α/2
To express the critical value as a z-score, find the z-score having a cumulative probability equal to the critical probability (p*).
Step-by-step explanation:
Answer:
Um I think that it might be 315,000 if that's what they mean