Answer:
The formula to calculate standard deviation from probability is \sqrt(n*p*(1-p)). n is the sample size, and 200 in this case (number of putts for practice). p is 80% or 0.8, the probability that he can make it. So the standard deviation is \sqrt(200*0.8*(1-0.8)=\sqrt(200*0.8*0.2)=\sqrt(16)=4.
Answer:
Quadrant III
Step-by-step explanation:
Answer: 6/834 = 0.0071942446
834/6 = 139
Step-by-step explanation:
Answer:
She will need to babysit for 7 hours to get $75 to add to her $15 to make $90.
Step-by-step explanation:
