question 2\n2 pts\ngiven a variable with 10 scores: 4, 6, 7, 9, 11, 12, 13, 17, 19, 19, what is the…
question 2\n2 pts\ngiven a variable with 10 scores: 4, 6, 7, 9, 11, 12, 13, 17, 19, 19, what is the median?\n11\n11.5\n12\n19
Answer
Explanation:
Step1: Check number of data points
There are 10 scores. Since the number of data - points $n = 10$ (an even number).
Step2: Find the middle positions
The middle positions are $\frac{n}{2}$ and $\frac{n}{2}+1$. Here, $\frac{10}{2}=5$ and $\frac{10}{2}+1 = 6$.
Step3: Identify the values at middle positions
The 5th value is 11 and the 6th value is 12.
Step4: Calculate the median
The median for an even - numbered data set is $\frac{\text{Value at }\frac{n}{2}+\text{Value at }\frac{n}{2}+1}{2}=\frac{11 + 12}{2}=11.5$.
Answer:
11.5