Linda asked the students of her class their hockey scores and recorded the scores in the table shown below:Hockey scores
Score. Number of students
0. 2
1. 1
2. 3
3, 6
4. 2
5. 3
6. 2
Based on the table, what is the mean hockey score?
2.7
2.9
3.2
5.2
Answers
The mean hockey score is 3.2
Step - by - step Explanation
The data given is a frequency distribution table.
The mean is calculated using the formula,
We obtain
by multiplying each score by the corresponding number of students and add the products as shown in the picture above
By substitution,
Hence the mean hockey score is 3.2 to the nearest tenth.
Answer: 3.2
Step-by-step explanation:
Mean is sum of values, divided by number of examples.
If we write down score for each student, we will receive a long list of scores:
0,0,1,2,2,2,3,3,3,3,3,3,4,4,5,5,5,6,6
Now let's sum total scores achieved by students:
0+0+1+2+2+2+3+3+3+3+3+3+4+4+5+5+5+6+6 = 60
So sum of our values (scores) is 60.
Number of examples in our case is number of students, so, total number of students is:
2+1+3+6+2+3+2=19
So mean score in this group can be calculated as:
mean
= total sum / number of examples
= sum of scores / number of students
= 60/19
= 3,158
So closes answer is 3.2.
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