Answer:
A number of tourists were interviewed on their choice of means of travel. Two- thirds said that they travelled by road, 1330 by air and 415 by both air and road. If 20 tourists did not travel by either air or road ; (i) represent the information on a Venn diagram ; (ii) how many tourists (1) were interviewed ; (2) travelled by air only?
Hello :
an equation :
(x-1)(x+4)(x+2-i)(x+2+i)
All angles in a triangle add up to 180 degrees. So, if you are missing an angle, add up the degrees of the angles present and subtract that from 180. That will be the value of the missing angle in degrees.
Answer:
The slope of the graph is 3/4
Step-by-step explanation:
Answer:
0.0110
Step-by-step explanation:
This is a Poisson distribution problem
Poisson distribution formula is given as
P(X = x) = (e^-λ)(λˣ)/x!
where λ = mean = 3 automobiles per minute
x = variable whose probability is required = more than 9 automobiles in a minute
P(X>9) = 1 - P(X ≤ 9)
P(X ≤ x) = Σ (e^-λ)(λˣ)/x! (Summation From 0 to x)
P(X < 9) = P(X=0) + P(X=1) + P(X=2) + P(X=3) + P(X=4) + P(X=5) + P(X=6) + P(X=7) + P(X=8) + P(X=9)
So, computing this one at a time, and summing it all up
P(X ≤ 9) = 0.99620
P(X>9) = 1 - P(X ≤ 9) = 1 - 0.99890 = 0.0110
