Question

probability model non
draw a card from a box filled with numbered cards.
cards are returned and shufled after each selection.
whats the probability of drawing a card with an even number
run trial
×1
run trial
×10
run trial
×100
even = ? %
total
trials
0
total
successes
0
percent
success
0%

Explanation:

Step1: Count total cards and even - numbered cards

Count the number of cards in the box. Assume there are 12 cards (by counting the visible ones in the image). Count the even - numbered cards: 10, 0, 0. So there are 3 even - numbered cards.

Step2: Calculate the probability

The probability formula is \(P=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}\). Here, the number of favorable outcomes (even - numbered cards) is \(n = 3\), and the total number of outcomes (total cards) is \(N=12\). So \(P=\frac{3}{12}\).

Step3: Convert to percentage

To convert the fraction to a percentage, use the formula \(P(\%)=\frac{n}{N}\times100\). Substitute \(n = 3\) and \(N = 12\) into the formula: \(P(\%)=\frac{3}{12}\times100=\frac{100}{4}=25\%\)

Answer:

25%