Question

for a math lesson, miss lam asked her students how many jackets they own. jackets what is the mean of the numbers?

Explanation:

Step1: Count data - points

There is 1 '0', 4 '1's, 0 '2's, 2 '3's, 1 '4', 2 '5's and 1 '6'.

Step2: Calculate sum of data

Sum = \(0\times1 + 1\times4+2\times0 + 3\times2+4\times1+5\times2+6\times1\)

$$
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$$

Step3: Calculate number of data - points

Number of data - points \(n=1 + 4+0+2+1+2+1=11\)

Step4: Calculate the mean

Mean \(\bar{x}=\frac{\text{Sum}}{n}=\frac{30}{11}\approx2.73\)

Answer:

\(\frac{30}{11}\) (or approximately \(2.73\))