Answer:
a) 11,880
b) 7,770
Step-by-step explanation:
The number of teachers that volunteer = 6 teachers
The number of students that volunteer = 12 students
The number of people in the committee = 5 people
a) The exact number of student on the committee = 3 student
Therefore, the number of teachers in the committee of 5 = 5 - 3 = 2
The number of teachers in the committee = 2 teachers
We get;
The number of committees that can be made = ₁₂C₃ × ₆C₂ = 792×15 = 11,880
b) When there is at least one teacher and at least one student on the committee, we have;
₁₂C₄ × ₆C₁ + ₁₂C₃ × ₆C₂ + ₁₂C₂ × ₆C₃ + ₁₂C₁ × ₆C₄ = 7,770
The number of committees having at least one teacher and at least one student = 7,770
Answer:
(-3/4,-7/2)
Step-by-step explanation:
Answer:
The registered passengers vehicle is he population and the one that are electro-gas hybrids forms a sample of the population.
Step-by-step explanation:
We are given the following in the question:
The U.S. Department of Transportation announces that of the 250 million registered passenger vehicles in the US, 2.1% are electro-gas hybrids.
Population and sample:
- Population is collection of all the observations of individuals of interest.
- Sample is a subset of population.
- Population is always larger than the sample.
- Population is the universal set of all observations.
Thus, for the given case,
Individual of interest:
250 million registered passenger vehicles in the US
Population of interest:
250 million registered passenger vehicles in the US
Sample:
2.1% electro-gas hybrids.
Thus, the registered passengers vehicle is he population and the one that are electro-gas hybrids forms a sample of the population.
Answer:
48
Step-by-step explanation:
100-52=48
3/8 of 16 = (16 / 8) x 3
= 2 x 3
= 6
2/3 of 6 = (6 / 3) x 2
= 2 x 2
= 4
