Answer:
C for sure
Step-by-step explanation:
Required probability = (1/2)^5 = 1/32
Its c (assuming that its a fair coin).
Answer:
36
Step-by-step explanation:
9+9+9+9=36 or 9 times 3
HOPE IT HELPS Y'ALL:)
Answer:
Step-by-step explanation:
Answer: a) Required minimum sample size= 219
b) Required minimum sample size= 271
Step-by-step explanation:
As per given , we have
Margin of error : E= 5% =0.05
Critical z-value for 90% confidence interval : 
a) Prior estimate of true proportion: p=28%=0.28
Formula to find the sample size :-

Required minimum sample size= 219
b) If no estimate of true proportion is given , then we assume p= 0.5
Formula to find the sample size :-

Required minimum sample size= 271