Probability As A Percentage Worksheet

                    Lesson 1

Problem:   What is probability of getting a King if one card is picked up from a well shuffled pack of 54 cards?

Solution    One card out of 54 cards can be selected in 54 different ways.

Step 1:   

Solution Out of these 54 cases four cases will favor the event selecting a five

Step 2: (five of Clubs, five of diamonds, five of Spades, and five of Hearts)

Solution     Probability of selecting an king card

Step 3:

Solution      Number of cases favoring the event

Step 4: Total number of different ways

Solution      4 / 54

Step 5:

Solution      2 / 27

Step 6:

Solution      Probability in percentage = 2 / 27 x 100 = 7.4 %

Step7:

Solution      Answer = 7.4 %

Step8:

Complete

Try two practice problems:  

Find the probability as a percentage (round to the nearest tenth).

(A) P(even positive numbers ≤ 10)

(B) P(Number divisible by 5 from 1-30)

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