Answer: 2017
Step-by-step explanation:
Given : The proportion of people that smoke : p=0.3
Margin of error : E= 0.02
Significance level :
Critical value : 
The formula to calculate sample size ( if proportion is known) :-
Hence, the required minimum sample would be 2017.
Answer:
19.4 units
Step-by-step explanation:
if perimeter is 2p+2w then the equation is
(2x6.2)+(2x3.5)
12.4+7
19.4 units
hope this helps have a blessed day :)
Answer:
n = 10
Step-by-step explanation:
Solve for n:
(3 n)/5 = 6
Multiply both sides of (3 n)/5 = 6 by 5/3:
(5×3 n)/(3×5) = 5/3×6
5/3×3/5 = (5×3)/(3×5):
(5×3)/(3×5) n = 5/3×6
5/3×6 = (5×6)/3:
(5×3 n)/(3×5) = (5×6)/3
(5×3 n)/(3×5) = (3×5)/(3×5)×n = n:
n = (5×6)/3
6/3 = (3×2)/3 = 2:
n = 5×2
5×2 = 10:
Answer: n = 10
For direct variation:
y = kx
-12 = 9k
k = -12/9 = -4/3
Therefore, the required equation is y = -4/3 x
Answer:
150
Step-by-step explanation:
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