Question

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 a 10 or higher?

Explanation:

Step1: Count total number of cards

Count the number of cards in the box. There are 10 cards.

Step2: Count number of favorable cards

Count the number of cards with number 10 or higher. There are 4 cards (two 10s and two 11s).

Step3: Calculate probability

Probability formula is \(P=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}\). Here, \(P = \frac{4}{10}\).

Step4: Convert to percentage

To convert fraction to percentage, multiply by 100. \(\frac{4}{10}\times100 = 40\%\)

Answer:

40%