Answer:
D.]
Step-by-step explanation:
We will find the standard deviation and variance:
Variance= E
-[![[E(x)]^{2}](https://tex.z-dn.net/?f=%5BE%28x%29%5D%5E%7B2%7D)
E[x] = 3.462
E[{x}^2]= 31.86
Var(x)= 31.86-(3.462)^2 = 28.4
Standard deviation = 
= 
= 5.833 = 6(aproximately)
Therefore, the chances of winning are equal in each lane.
Oooo this a little bit to hard for me I’m sorry
Answer:
take 7 from both sides of the inequality which gives 12x <-18
divide both sides by 12 and u get x=-3/2
Answer:
She drove 3 hours
Step-by-step explanation:
Leslie drove 2/3 of the 4 1/2 hours trip. To determine how long she drove, multiply these numbers together.
2/3 * 4 1/2
We need to change the second number to an improper fraction
4 1/2 = (2*4 +1)/2 = 9/2
2/3 * 9/2 = 9/3 = 3
She drove 3 hours
False.
The applicable formula for amount in account (a) after t years is given by:
a = Pe^(rt); where a = Amount in an account, P = Amount deposited, r = Annual interest rate, t = time in years.
Substituting;
a = 3000e^(0.055t)
