Question

the median of 5, 7, 2, 9, 8 is:
1 point
5
7
8
6

a bag has 3 red, 5 blue, and 2 green marbles. whats the probability of picking a green marble?
2 points
your answer

Explanation:

Step1: Sort the data set

$2, 5, 7, 8, 9$

Step2: Identify the middle value

For $n=5$ (odd), median is the $\frac{5+1}{2}=3$rd term

Step3: Calculate total number of marbles

$3 + 5 + 2 = 10$

Step4: Compute green marble probability

$\text{Probability} = \frac{\text{Number of green marbles}}{\text{Total marbles}} = \frac{2}{10} = \frac{1}{5}$

Answer:

1. B. 7
2. $\frac{1}{5}$ (or 0.2)