Answer:
4.5
Step-by-step explanation:
2,700 ÷ 600 = 4.5
not a 100% sure just trying to help
All we need to do is 2400/700 = 3.43 (rounded) square ft. per person
Answer:
100
Step-by-step explanation:
10 + 45*2
10 + 90
100
Answer:
B.
Step-by-step explanation:
Because if you look closely you will be able to tell which answer it is by looking at the way the shape formed andjust breakaprt the shape .
Answer:
The correct answer is option 'a' : 120 is more than 2.5 standard deviations above the expected value.
Step-by-step explanation:
For an exponential distribution we have
The expected value μ = 80
No of trails n = 200
Thus we have
![p=\frac{80}{200}=0.4](https://tex.z-dn.net/?f=p%3D%5Cfrac%7B80%7D%7B200%7D%3D0.4)
The deviation is related to expected value and probability as
![\sigma =\sqrt{np(1-p)}\\\\\therefore \sigma =\sqrt{200\cdot 0.4\cdot (1-0.4)}=6.9](https://tex.z-dn.net/?f=%5Csigma%20%3D%5Csqrt%7Bnp%281-p%29%7D%5C%5C%5C%5C%5Ctherefore%20%5Csigma%20%3D%5Csqrt%7B200%5Ccdot%200.4%5Ccdot%20%281-0.4%29%7D%3D6.9)
Thus the values between the given deviation is
![x_{1}=80-2.5\times 6.9=62.75\\\\x_{2}=80+6.9\times 2.5=97.25](https://tex.z-dn.net/?f=x_%7B1%7D%3D80-2.5%5Ctimes%206.9%3D62.75%5C%5C%5C%5Cx_%7B2%7D%3D80%2B6.9%5Ctimes%202.5%3D97.25)
Now since 120 successes are out of the range of [62.75,97.25] thus 120 is more than the expected value.