The number of goals scored by a football team in 20 matches is shown below
\(\begin{array}{c|c} \text{No. of goals} & 0 & 1 & 2 & 3 & 4 & 5 \\ \hline \text{No. of matches} & 3 & 5 & 7 & 4 & 1 & 0 \end{array}\)
What are the values of the mean and the mode respectively?
The correct answer is B. (1.75, 2)
To find the mean and the mode of the number of goals scored by the football team, we can follow these steps:
Step 1: Calculate the mean (average):
The mean is calculated as the sum of all values divided by the total number of values. In this case, it's the sum of (number of goals * number of matches) divided by the total number of matches.
Mean = \(\frac{0*3 + 1*5 + 2*7 + 3*4 + 4*1 + 5*0}{3 + 5 + 7 + 4 + 1 + 0}\)
Mean = \(\frac{0 + 5 + 14 + 12 + 4 + 0}{20}\)
Mean = \(\frac{35}{20}\)
Simplify the fraction:
Mean = \(\frac{7}{4} = 1.75\)
So, the mean is 1.75.
Step 2: Find the mode (the value that appears most frequently):
From the given data, the number of goals and the corresponding number of matches are as follows:
- 0 goals: 3 matches
- 1 goal: 5 matches
- 2 goals: 7 matches
- 3 goals: 4 matches
- 4 goals: 1 match
- 5 goals: 0 matches
The mode is the value that appears most frequently, which is 2 goals in this case.
So, the mode is 2.
Therefore, the values of the mean and the mode are 1.75 and 2, respectively.
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