Question

Lucia has 50 sports cards she has 20 football cards 10 baseball card 15 basketball card and five hockey cards a single card is selected at a random what is the probability that the card is a football card or basketball card

Answer 1

The probability that the card is a football card is 20 out of 50 or 40%
the probability that the card is a basketball card is 10 out of 50 or 20%

Answer 2

Answer: $\dfrac{7}{10}$

Step-by-step explanation:

Given : Total sports cards = 50

Number of football cards = 20

Number of basketball card = 15

Probability of getting a foot ball card =$\dfrac{\text{No. of football card}}{\text{Total carrds}}$

$=\dfrac{20}{50}$

Probability of getting a basketball card =$\dfrac{\text{No. of basketball card}}{\text{Total carrds}}$

$=\dfrac{15}{50}$

Since each card is different from another , so the events of drawing any card are independent.

In this case P(foot ball card or basket ball card)= P(foot ball card ) +P(basketball card)

$=\dfrac{20}{50}+\dfrac{15}{50}=\dfrac{35}{50}=\dfrac{7}{10}$

Thus , the probability that the card is a football card or basketball card is $\dfrac{7}{10}$ .