Answer:
Everything is correct except for the second one and the ones you checkmarked.
Step-by-step explanation:
The awnser will be mother russia
13. x= 27/4 or 6 and 3/4
14. x= 27
15. x= 191/7 or 27 and 2/7
16. x= 83/15 or 5 8/15
the key to solving these is cross-multiplying and finding a common denominator, you can use photomath if you want to see the solving steps, hope this helps!
Answer:
<em>The number of people would have participate in opinion poll</em>
<em>n = 15,267</em>
Step-by-step explanation:
<u><em>Step(i)</em></u>:-
Given data an opinion poll reported that 36% believe a certain governor broke campaign financing laws in his election campaign.
<em>Given proportion = 36% =0.36</em>
<em>Given the margin of error = 1% =0.01</em>
<em>Level of significance = 99% 0 r 0.01</em>
<em>Z₀.₀₁ = 2.576</em>
<u><em>step(ii):</em></u><em>-</em>
<em>The margin of error of Population proportion is determined by</em>



√n = 123.648
Squaring on both sides , we get
<em>n = 15,267</em>
<u><em>final answer:</em></u><em>-</em>
<em>The number of people would have participate in opinion poll</em>
<em>n = 15,267</em>
To help you with this topic, I would suggest you revise probability trees.
P(train arriving) = 0.8
P(train arriving on time) = 0.84
P(train arriving late) = 0.86
0.8 x 0.86 = 0.688
Answer: 0.688
Hope it helped :)