Answer: 24 meters :-)
Step-by-step explanation:
Answer:
1,7
Step-by-step explanation:
7x = 9x-2
2 = 2x
x = 1
y = 7
40% is close to 50% which is = to 1/2
So just divide 60 by 2. which would be around 30
this is the best way i could explain, I hope this helps
Answer:
(a)
(b)
-1
(c)
30
Step-by-step explanation:
(a)
Your random variable will have two possible values, 30 and 0, one of them with a probability of 0.45 and the other one with a probability of 0.55. Therefore it looks like this.
(b)
The expected value of this PMF would be
![E[X] = -10*0.55+10*0.45= -1](https://tex.z-dn.net/?f=E%5BX%5D%20%3D%20-10%2A0.55%2B10%2A0.45%3D%20-1)
therefore on average you will have a dollar less.
(c)
For this one, if you play 20 times and your initial amount is 50$ then you have to compute the following expectation.
![E[50+20*X] = 50+20*E[X] = 50-20 = 30](https://tex.z-dn.net/?f=E%5B50%2B20%2AX%5D%20%3D%2050%2B20%2AE%5BX%5D%20%3D%2050-20%20%3D%2030)
Answer:
None of the statements is true. that is (e) None of the choices.
Step-by-step explanation:
Because if we go by the definition above that that Month X and month Y have the " strongest NEGATIVE correlation" then we can see clearly see that the option is not included.
Negative Correlation: this is the exact relationship between two variables whereby if one variable increases then the other variable decreases and vice versa.
Hence by this we are suppose to conclude that if we observe more tornadoes in month X then we will observe less tornadoes in Month Y.
