HEREDITY
BASICS OF PROBABILITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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2
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3
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34
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93
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Detailed explanation-1: -The customer can choose 93 options. Important information: Types of cones = 3. Flavors of ice cream = 31.
Detailed explanation-2: -The Baskin-Robbins Ice Cream Stores have 31 flavors of ice cream. a) How many different 3-scoop ice cream cones are possible if you are allowed to repeat flavors and want the scoops put on the cone in a particular order? = 29, 791.
Detailed explanation-3: -There are 31 possible flavors for the first scoop. That leaves 30 possible flavors for the second scoop. Using the multiplication rule, there are 31 × 30 = 930 possible two scoop cones that Jessica could order.
Detailed explanation-4: -Since the order is important, you need to calculate the permutations of 31 objects taken 3 at a time. So using a permutation calculator I get 26, 970 different possibilities.
Detailed explanation-5: -There are 2 ways to choose a cone and 15 ways to choose a flavor. By the Fundamental Counting Principle, there are 2 × 15 = 30 ways to choose a 1-scoop ice cream.