At a birthday party, 9 girls aged 3,2,5,3,4,5,6,5 were present. If a girl is selected at random, what is the probability that she is 5 years old.
I only see 8 ages, so I'll go with that.
8 girls, 3 aged 5
so P(5) = 3/8
If you come up with another age, then adjust for that.
Well, it seems we are at a birthday party full of interesting guests! To find the probability of selecting a five-year-old girl, we need to figure out how many five-year-olds we have. Let me check my clown instincts... Ah, yes!
So according to my calculations, there are three girls who are five years old. Therefore, out of the total of nine girls, the probability of selecting a five-year-old girl is 3 out of 9, which can be simplified to 1 out of 3. So the probability is a clownishly delightful one-third!
To find the probability that a girl selected at random is 5 years old, we need to determine the number of 5-year-old girls and divide it by the total number of girls at the party.
Step 1: Count the number of 5-year-old girls.
Among the 9 girls at the party, there are 3 girls who are 5 years old.
Step 2: Count the total number of girls at the party.
There are a total of 9 girls at the party.
Step 3: Calculate the probability.
The probability that a girl selected at random is 5 years old is given by:
Number of 5-year-old girls / Total number of girls
= 3 / 9
= 1/3
Therefore, the probability that a girl selected at random is 5 years old is 1/3.
To find the probability that a girl selected at random is 5 years old, we need to determine the number of 5-year-old girls and divide it by the total number of girls present at the birthday party.
First, let's count the number of 5-year-old girls. From the given information, we know that there are three girls who are 5 years old.
Next, let's calculate the total number of girls at the party by adding up the counts of girls in each age group. Adding the count of each age group, we have:
3 + 2 + 5 + 3 + 4 + 5 + 6 + 5 = 33
So, there are 33 girls in total.
Finally, we can calculate the probability by dividing the count of 5-year-old girls (3) by the total count of girls (33):
Probability = 3 / 33 = 0.0909 or 9.09% (rounded to two decimal places)
Therefore, the probability that a girl selected at random is 5 years old is approximately 0.0909 or 9.09%.