Question
1.2
What is P(divisor of 7 )?
Write your answer as a percentage.
What is P(divisor of 7 )?
Write your answer as a percentage.
Ask by Guerrero Greene. in the United States
Mar 24,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
The probability
is approximately
.
Solution
To find
, we first need to identify the divisors of 7.
The divisors of 7 are the numbers that can divide 7 without leaving a remainder. Since 7 is a prime number, its only divisors are 1 and 7 itself.
Now, let’s calculate the probability
of randomly selecting a divisor of 7 from the set of all integers.
- The total number of divisors of 7 is 2 (which are 1 and 7).
- The total number of integers is infinite.
However, if we consider the probability in a finite context, we can express it as:
Since we cannot define a finite total number of integers, we can consider the probability of selecting a divisor from a limited set, such as the integers from 1 to 7.
In this case, the integers from 1 to 7 are: 1, 2, 3, 4, 5, 6, 7 (which is a total of 7 integers).
Thus, the probability can be calculated as:
Now, to express this probability as a percentage:
Let’s calculate this:
Calculate the value by following steps:
Calculate the value by following steps:
- step0: Calculate:
- step1: Multiply:
- step2: Multiply:
The probabilityexpressed as a percentage is approximately .
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Bonus Knowledge
The probability of selecting a divisor of 7 involves identifying its divisors first. The divisors of 7 are 1 and 7 itself, making a total of 2 divisors. If we assume we’re selecting from the integers 1 to 7 (inclusive), we have 7 possible outcomes. Thus, the probability
is
.
To express this as a percentage, we multiply by 100. Therefore,
.