Question

If a card is chosen from a standard deck of cards, what is the probability of getting a five or a seven?

Answer 1

Answer-

there are ,

4/52 of cards

4/52 of 7 cards

Answer 2

The probability of getting a five or a seven=$\frac{2}{13}$

Step-by-step explanation:

Number of cards in a standard deck=52

Number of cards of 7=4

Number of cards of 5=4

The probability of getting  a 5=$\frac{4}{52}$

By using the formula  

Probability,$P(E)=\frac{favorable\;cases}{total\;number\;of\;cases}$

The probability of getting a seven=$\frac{7}{52}$

The probability of getting a five or a seven=$\frac{4}{52}+\frac{4}{52}$

The probability of getting a five or a seven=$\frac{4+4}{52}=\frac{8}{52}$

The probability of getting a five or a seven=$\frac{2}{13}$