Answer: 306.328
Step-by-step:
To get that answer do this:
300+0=300 -----> 3
No Tens Place-----> 30
6+0=6-------> 306
.3+0=.3------> 306.3
.02+0=.02------> 306.32
.008+0=.008------> 306.328
Answer:
The sample size 'n' = 384
Step-by-step explanation:
<u>Step(i)</u>:-
Given data the margin of error = 0.05
The margin of error of the estimation of a population proportion is determined by

<u><em>Step(ii)</em></u>:-
In data not given sample proportion 'p' but
we know that 

cross multiplication, we get
0.05 ×√n = 0.98

<em>squaring on both sides, we get</em>
<em>n = 384.16≅ 384</em>
<u><em>Final answer</em></u><em>:-</em>
<em>The sample size 'n' = 384</em>
I think the answer would be B that’s the only one I consider