Answer: is it an isogonal hexagon or something like that cause I kind of
what it was called
Step-by-step explanation:
Answer:
1. 0.0417
2. 0.1375
3. no
Step-by-step explanation:
lets define:
A as the probability that a car needs a warranty repair.
B as probability taht the car is manufactured by a company that is based in country X
we have the
prob(A) = 0.08
prob(B) = 0.60
prob(A∩B) = 0.025
a. we are to calculate the probability taht a car manufactured in country X needs a warranty repair.
= p(AIB) =
= 0.025/0.60
= 0.0417
2. Probability that car needs warranty repair given it was not manufactured in country X.
P(AIB')
= p(A∩B')/P(B')
= 0.08-0.025/1-0.60
= 0.055/0.40
= 0.1375
3. no, Need for warranty repair and location are not independent
Given Information:
Probability of success = p = 75 %
Total number of students = n = 1200
Required Information:
Standard deviation = σ = ?
Answer:
Standard deviation = 15
Step-by-step explanation:
In a binomial distribution, the probability of success does not change from trial to trial and the probability of events in not dependent on each other. Also the number of trials are fixed. So this problem can be modeled using binomial distribution.
The mean of the number of students who choose to enroll is given by
μ = n*p = 1200*0.75
μ = 900
The standard deviation of the number of students who choose to enroll is given by
σ = √np(1 - p)
σ = √1200*0.75(1 - 0.75)
σ = 15
Therefore, the standard deviation of the number of students who choose to enroll is 15.
Answer: 2,-6
Step-by-step explanation: