12 and 1/8, I just simplified 2/16 to 1/8
The slope of this line is -3/4
In order to find this, we look for two points on the line and then use the slope formula. Two points that are on the line are (0, 2) and (4, -1). Plug these into the following formula.
m (slope) = (y2 - y1)/(x2 - x1)
m = (-1 - 2)/(4 - 0)
m = -3/4
To solve for 2 variables, you need 2 equations. The best you could do with only one equation would be to find 'a' in terms of 'b'. Just looking it over and without putting pen to paper, it looks to me like one possible solution is [ a = 4, b = 0 ].
The answer is B. you multiply 300 and 15% and it gets you 45 that’d save you money compared to the second incentive
Answer:
Answer : (0.1183 ≤ p ≤ 0.3103)
Step-by-step explanation:
Solution :
Given that,
a) n = 70
x = 15
Point estimate = sample proportion (p)= x / n = 15 / 70 = 0.2143
1 - p = 1 - 0.2143 = 0.7857
At 95% confidence level
α = 1 - 95%
α =1 - 0.95 =0.05
α/2 = 0.025
Zα/2 = Z0.025 = 1.960
Margin of error = E = Zα / 2 * √ (( p * (1 - p )) / n)
= 1.96 (√((0.2143 * 0.7857) / 70)
= 0.096
A 95% confidence interval for population proportion p is ,
P - E ≤ p ≤ P + E
0.2143 - 0.096 ≤p ≤ 0.2143 + 0.096
(0.1183 ≤ p ≤ 0.3103)
