The probability for rolling a sum of 7 is: 1/6
Step-by-step explanation:
Given that two six-sided dies are rolled the total outcomes will be:
n(S) = 36
Out of total outcomes we have to count the outcomes that sum up to 7
Let A be the event that the sum of outcomes is 7
Here the first number is the result of first die and second number is the result of 2nd die.
n(A) = 6
So the probability of A will be:
Hence,
The probability for rolling a sum of 7 is: 1/6
Keywords: Probability, sample space
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The answer would be 193 because first u multiply 19 and 10 and then subtract 5 which is 185 and finally add 8 which is 193.
Answer:
3.70% probability of the pointer landing on red each time
Step-by-step explanation:
For each time that the pointer is spun, there are only two possible outcomes. Either it lands on red, or it does not. The probability that it lands on red on a spin is independent of other spins. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
12 sections, of which 4 are red.
This means that
The pointer on the spinner is spun 3 times.
This means that
What is the probability of the pointer landing on red each time?
This is P(X = 3).
3.70% probability of the pointer landing on red each time
Answer: they will be 15 miles apart
Step-by-step explanation: I use Pythagorean’s Theorem.