The number is 21.
A hexagon can be divided into how many triangles by drawing all of the diagonals from one vertex?
2 answers:
Answer:
4 triangles are formed.
Step-by-step explanation:
Given a hexagon that can be divided into triangles by drawing all of the diagonals from one vertex.
we have to find the number of triangles formed.
As shown in attachment if we a diagonals from one vertex then only 3 diagonals are drawn which results into 4 triangles.
Hence, 4 triangles are formed by drawing all of the diagonals from one vertex.
Hence, option A is correct.
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Answer:
The probability of founding exactly one defective item in the sample is P=0.275.
The mean and variance of defective components in the sample are:
Step-by-step explanation:
In the case we have a lot with 3 defectives components, the proportion of defectives is:
a) The number of defectives components in the 5-components sample will follow a binomial distribution B(5,0.075).
The probability of having one defective in the sample is:
b) The mean and variance of defective components in the sample is:
The Chebyschev's inequality established: