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 2 points marbles. whats the probability of picking a green marble? your answer

Explanation:

First Question (Median)

Step1: Order the numbers

Arrange the numbers \( 5, 7, 2, 9, 8 \) in ascending order: \( 2, 5, 7, 8, 9 \).

Step2: Find the middle number

Since there are 5 numbers (an odd count), the median is the middle number, which is the 3rd number. The 3rd number in \( 2, 5, 7, 8, 9 \) is \( 7 \).

Step1: Calculate total number of marbles

The bag has 3 red, 5 blue, and 2 green marbles. So total marbles \( = 3 + 5 + 2 = 10 \).

Step2: Calculate probability of green marble

Probability of an event \( P(E) = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} \). For green marbles, number of favorable outcomes is 2, total outcomes is 10. So \( P(\text{green}) = \frac{2}{10} = \frac{1}{5} = 0.2 \).

Answer:

7

Second Question (Probability)