Answer:
The mean of the number of restaurants that failed within a year is 28.38 and the standard deviation is 4.02.
Step-by-step explanation:
For each restaurant, there are only two possible outcomes. Either it fails during the first year, or it does not. The probability of a restaurant failling during the first year is independent of other restaurants. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
The expected value of the binomial distribution is:
The standard deviation of the binomial distribution is:
In the city where she lives, the probability that an independent restaurant will fail in the first year is 43 %.
This means that
66 independent restaurants
This means that
Mean:
Standard deviation:
The mean of the number of restaurants that failed within a year is 28.38 and the standard deviation is 4.02.
Answer:
1 2/3
Step-by-step explanation:
5-3 1/3=
5-9+1/3=
5-10/3=
15/3-10/3=
5/3=1 2/3
12:15 p.m.
385.25 - 29 = 356.25
356.75/75 = 4.75(equivalent to 4 hours 45 minutes)
7:30 + 4:45 = 12:15 p.m.
Answer:
the answer is 1 bcs what u have to do is multiply 1x1x1 and divide that by 1 again to get your total. hope this help!
Answer:
Factor 3x^2-17x-20, and you get (x + 1)(3 x - 20)
x = 17/6 + sqrt(1729)/6, x = 17/6 - sqrt(1729)/6
Step-by-step explanation:
Factor 3x^2-17x-20, and you get (x + 1)(3 x - 20)
When 3x^2-17x-20 is equal 100
3x^2-17x-20=100
Subtract both sides by 100
3x^2-17x-120=0
Use the quadratic formula
x = 17/6 + sqrt(1729)/6, x = 17/6 - sqrt(1729)/6