Example 4 - Chapter 14 Class 10 Probability

Transcript

Example 4 One card is drawn from a well-shuffled deck of 52 cards. Calculate the probability that the card will be an ace, Total number of cards = 52 Total number of aces = 4 P (getting an ace) = (𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑎𝑐𝑒𝑠)/(𝑇𝑜𝑡𝑎𝑙 𝑛𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑐𝑎𝑟𝑑𝑠) = 4/52 = 𝟏/𝟏𝟑 Example 4 One card is drawn from a well-shuffled deck of 52 cards. Calculate the probability that the card will (ii) not be an ace. P(we do not get an ace) = 1 – P(get an ace) = 1 – 𝟏/𝟏𝟑 = (13 −1)/13 = 𝟏𝟐/𝟏𝟑