Answer: 0.030
Step-by-step explanation:
Given: The percent of the items produced by a machine are defective :
The percent of the items produced by machine which are not defective:
Sample size : n = 100
Now, the standard error of the proportion is given by :-

Hence, the the standard error of the distribution of the sample proportions=0.030
Answer:
D. 230
Step-by-step explanation:
<h3> 10x3=30
<em> then add 200 then that equals 230</em></h3>
3/10 or 30/100 are left handed boys bc that is 30% converted into a fraction
15 is A, 22+X=8
I don't have time to solve the rest RN but will come back later