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1 answer:
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Answer with explanation:
It is given that Height of Parallelogram = 2 units
Each segment on the grid represents 1 unit.
So,One side of Parallelogram = 3 units
Properties of Parallelogram
1. Opposite sides are equal.
2. Opposite sides are parallel.
3. Diagonals Bisect each other.
Also, Every Rectangle is a Parallelogram.
Image is drawn below.
Answer: 0.9995
Step-by-step explanation:
Number of digits to make any code (0 to 9) = 10
If repetition is allowed , then the total number of possible four digits pin codes that can be formed=
The number of ways to make for digit code without repetition of digits =
The number of ways to make for digit codes having repetition =
Probability that a person has pin code that has repetition:-
Let x be number of pin codes with repeating digits.
Using binomial probability distribution formula ,
If the PIN codes of seven people are selected at random, then the probability that at least one of them will have repeating digits:-
Hence, the probability that at least one of them will have repeating digits = 0.9995