The marks obtained by 10 children in a metal drill are 0,1,3,3,5,7,8,9,9,9,.What is the probability that a child chosen at random scored 3 marks
Answer
Well, it seems like this metal drill gave out pretty interesting marks, with a wide range of scores. Now, to calculate the probability of a child scoring 3 marks, we need to know the total number of children and the number of children who scored 3 marks.
Out of the 10 children, we can see that there are 2 children who scored 3 marks. So, the probability would be 2/10, which simplifies to 1/5.
Therefore, the probability that a child chosen at random scored 3 marks is 1/5. That's a pretty solid chance, considering the marks were all over the place!
To find the probability that a child chosen at random scored 3 marks, we need to determine the number of children who scored 3 marks and divide it by the total number of children.
Given the marks obtained by the 10 children: 0, 1, 3, 3, 5, 7, 8, 9, 9, 9.
Step 1: Count the number of children who scored 3 marks.
There are two children who scored 3 marks.
Step 2: Calculate the probability.
The total number of children is 10.
Probability = Number of favorable outcomes / Total number of possible outcomes
Probability = 2 / 10
Probability = 1/5
Therefore, the probability that a child chosen at random scored 3 marks is 1/5.
To calculate the probability that a child chosen at random scored 3 marks, you need to determine the number of children who scored 3 marks and divide it by the total number of children.
In this case, the number of children who scored 3 marks is 2 (according to the provided data: 3, 3). The total number of children is 10.
Therefore, the probability that a child chosen at random scored 3 marks is 2/10, which can be simplified to 1/5 or 0.2 (20%).