Step-by-step explanation:
sorry but i need points Thank you
Answer:
1.5 or 1 1/2 of a lawn in one hour. about one hour to mow one yard.
Step-by-step explanation:
Answer:
a) correct option is
Poisson distribution is 6.2 and standard deviation is 2.49
b) probability for only 2 or less than 2 surgeries in a given day is 0.0536
Step-by-step explanation:
Given data:
mean number is given as 6.2
correct option is
Poisson distribution is 6.2 and standard deviation is 2.49
we know that variance is given as![\sigma^2 = mean = 6.2](https://tex.z-dn.net/?f=%20%5Csigma%5E2%20%3D%20mean%20%3D%206.2)
hence, standard deviation is given as ![\sqrt{6.2} = 2.48998](https://tex.z-dn.net/?f=%5Csqrt%7B6.2%7D%20%3D%202.48998%20)
thus standard deviation is 2.49
correct option is
Poisson distribution is 6.2 and standard deviation is 2.49
b) probability for only 2 or less than 2 surgeries in a given day is
![P(X \leq 2) = P(X =0) + P(X =1) + P(X =2)](https://tex.z-dn.net/?f=P%28X%20%5Cleq%202%29%20%3D%20P%28X%20%3D0%29%20%2B%20P%28X%20%3D1%29%20%2B%20P%28X%20%3D2%29)
![= \frac{e^{-6.2} 6.2^0}{0!} +\frac{e^{-6.2} 6.2^1}{1!} +\frac{e^{-6.2} 6.2^2}{2!}](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7Be%5E%7B-6.2%7D%206.2%5E0%7D%7B0%21%7D%20%2B%5Cfrac%7Be%5E%7B-6.2%7D%206.2%5E1%7D%7B1%21%7D%20%2B%5Cfrac%7Be%5E%7B-6.2%7D%206.2%5E2%7D%7B2%21%7D)
= 0.002029 + 0.012582+ 0.039006
= 0.053617
= 0.0536
3x - 4y = 8
y = mx + b ; m is the slope ; b is the y-intercept
-4y = -3x + 8
y = -3x/-4 + 8/-4
<u>y = 3/4 x - 2</u>
Need to check if the given choices have the same slope.
3x + 4y = -8
4y = -3x - 8
y = -3/4 x - 8/4 = -3/4 x - 2
6x - 8y = 12
-8y = -6x + 12
y = -6/-8 x + 12/-8
y = 3/4 x - 1 1/2
9x - 12y = 24 This equation would cause a consistent-dependent system
-12y = -9x + 24
y = -9/-12 x + 24/-12
<u>y = 3/4 x - 2</u>
16x + 12y = -10
12y = -16x - 10
y = -16/12 x - 10/12
y = -1 1/3 x - 5/6
He have about 0 dime and 69 coins each