Question

score: 25/100 answered: 5/20 question 6 the table below shows a students quiz scores on four quizzes. scores 18 15 14 20 find this students mean quiz score check answer

Explanation:

Step1: Sum up all scores

$$18 + 15+14 + 20$$
$$=33+14 + 20$$
$$=47+20$$
$$=67$$

Step2: Divide the sum by the number of quizzes

The number of quizzes \(n = 4\).
The mean formula is \(\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}\), so \(\bar{x}=\frac{67}{4}=16.75\)

Answer:

\(16.75\)