Add all the prices you have together.
9+7+9+6+10=41
There are six items in total so you need to add all the values and divide by 6 to get 8.
When you include the chicken wings you have (41+x)/6=8
Multiply both sides by 6
41+x = 48
Subtract 41 from both sides
X=7
The chicken wings need to be $7
Answer:
Mean = 0.38082 checks per day
Variance = 0.38082
Standard deviation = 0.61711
Step-by-step explanation:
In a Poisson distribution, the variance (V) is equal to the mean value (μ), and the standard deviation (σ) is the square root of the variance.
A year has 365 days,, if 139 checks were written during a year, the mean number of checks written per day is:
![E(x)=\mu=\frac{139}{365}\\ \mu=0.38082\ checks/day](https://tex.z-dn.net/?f=E%28x%29%3D%5Cmu%3D%5Cfrac%7B139%7D%7B365%7D%5C%5C%20%5Cmu%3D0.38082%5C%20checks%2Fday)
Therefore, the variance and standard deviation are, respectively:
![V=\mu=0.38082\\\sigma=\sqrt{V}=\sqrt{0.38082}\\ \sigma =0.61711](https://tex.z-dn.net/?f=V%3D%5Cmu%3D0.38082%5C%5C%5Csigma%3D%5Csqrt%7BV%7D%3D%5Csqrt%7B0.38082%7D%5C%5C%20%5Csigma%20%3D0.61711)
Answer:
lower bound: 315 litres
upper bound: 324 litres
Step-by-step explanation:
The following rules apply:
- if the last digit of the number is 1, 2, 3, or 4; it is rounded down
- if the last digit of the number is 5, 6, 7, 8, or 9.
; it is rounded up
So:
314 is rounded to 310
315 is rounded to 320
324 is rounded to 320
325 is rounded to 330
Answer:
Vertex=(1,1),(-3,1)
Foci=(-1+\sqrt(5),1),(-1-\sqrt(5),1)
Asymtotes=y=(x/2)+(3/2),y=(-x/2)+(1/2)