There is a spinner with 12 equal areas, numbered 1 through 12. If the spinner is spun one time, what is the probability that the result is a multiple of 2 or a multiple of 3?

Respuesta :

Answer :

  • 2/3 or 0.67

Explanation :

all the multiples of 3 and 2 between 1 and 12

  • 2 : 2,4,6,8,10,12
  • 3 : 3,6,9,12

favourable outcomes : 2,3,4,6,8,9,10,12

  • = 8

total outcomes : 1 to 12

  • = 12

probability : favourable outcomes/total outcomes

  • probability : 8/12 = 2/3

Answer:

[tex]\dfrac{2}{3}[/tex]

Step-by-step explanation:

Probability is the measure of the likelihood that an event will occur, and is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

[tex]\boxed{\textsf{Probability}=\dfrac{\textsf{Number of favorable outcomes}}{\textsf{Total number of possible outcomes}}}}[/tex]

Given that a spinner has 12 equal areas numbered 1 through 12, the total number of possible outcomes is 12.

To find the probability that the result of spinning the spinner one time is a multiple of 2 or a multiple of 3, we need to count the outcomes that satisfy either condition and then divide by the total number of possible outcomes.

Multiples of 2:  2, 4, 6, 8, 10, 12

Multiples of 3:  3, 6, 9, 12

Since the numbers 6 and 12 appear in both lists, we only need to count them once. So, there is a total of 8 favourable outcomes:

2, 3, 4, 6, 8, 9, 10, 12

Therefore:

[tex]\textsf{Probability} = \dfrac{\textsf{Number of favorable outcomes}}{\textsf{Total number of outcomes}} = \dfrac{8}{12} = \dfrac{2}{3}[/tex]

So, the probability that the result is a multiple of 2 or a multiple of 3 is:

[tex]\dfrac{2}{3}[/tex]