Put ur equation in y = mx + b form, and m will be ur slope
y + 3x = 4.....subtract 3x from both sides
y = -3x + 4......so -3 is ur slope
Answer:
Since both
and
, you can use a normal distribution to approximate the binomial distribution.
The mean is of 11.1 and the standard deviation is of 2.64.
Step-by-step explanation:
Binomial probability distribution
Probability of exactly x successes on n repeated trials, with p probability.
The expected value of the binomial distribution is:
![E(X) = np](https://tex.z-dn.net/?f=E%28X%29%20%3D%20np)
The standard deviation of the binomial distribution is:
![\sqrt{V(X)} = \sqrt{np(1-p)}](https://tex.z-dn.net/?f=%5Csqrt%7BV%28X%29%7D%20%3D%20%5Csqrt%7Bnp%281-p%29%7D)
Using the normal distribution to approximate the binomial distribution.
This is possible if:
![np \geq 10, n(1-p) \geq 10](https://tex.z-dn.net/?f=np%20%5Cgeq%2010%2C%20n%281-p%29%20%5Cgeq%2010)
A survey of U.S. adults found that 37% have been to court. You randomly select 30 U.S.
This means that ![p = 0.37, n = 30](https://tex.z-dn.net/?f=p%20%3D%200.37%2C%20n%20%3D%2030)
Test if it is possible:
![np = 30*0.37 = 11.1](https://tex.z-dn.net/?f=np%20%3D%2030%2A0.37%20%3D%2011.1)
![n(1-p) = 30*0.63 = 18.9](https://tex.z-dn.net/?f=n%281-p%29%20%3D%2030%2A0.63%20%3D%2018.9)
Since both
and
, you can use a normal distribution to approximate the binomial distribution.
Mean and standard deviation:
![E(X) = np = 30*0.37 = 11.1](https://tex.z-dn.net/?f=E%28X%29%20%3D%20np%20%3D%2030%2A0.37%20%3D%2011.1)
![\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{30*0.37*0.63} = 2.64](https://tex.z-dn.net/?f=%5Csqrt%7BV%28X%29%7D%20%3D%20%5Csqrt%7Bnp%281-p%29%7D%20%3D%20%5Csqrt%7B30%2A0.37%2A0.63%7D%20%3D%202.64)
The mean is of 11.1 and the standard deviation is of 2.64.
Interest = PRT /100
500 = 2000*2.5*T / 100
5000T = 50,000
T = 50,000 / 5000 = 10 years
Answer:
Step-by-step explanation:
hope this helps
Answer:
50
Step-by-step explanation:
"sam places 3850 in a bank account that pays 1.3% simple interest per year and how much interest will she earn in 6 years | Wyzant Ask An Expert" https://www.wyzant.com/resources/answers/646803/sam-places-3850-in-a-bank-account-that-pays-1-3-simple-interest-per-year-an3850