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Mamont248 [21]
2 years ago
7

Explain how the complement can be used to find the probability of getting at least one item of a particular type

Mathematics
1 answer:
valkas [14]2 years ago
5 0
The outcome A="At least one" means {1,2,3,4,5......n}   where n is the maximum possible outcome.

The only other outcome (B) left (i.e. the complement of the above event "at least one") is (B)={0}.

Therefore, by Kolmogorov's second axiom, A and B are complements, and
P(A)+P(B)=1
therefore
P(A)=1-P(B), or in words,
Probability of outcomes of "at least one" is the complement of the outcome of "0" item.
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Lincoln Junior High School asked all of their eighth grade students the question, “What is your favorite breakfast?” and 18 perc
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Answer:

I hope this image and explanation helps you!

Step-by-step explanation:

All students in the eighth grade were surveyed, so we can make the valid conclusion that 18% of all students in the eighth grade at Lincoln Junior High School have pancakes as their favorite breakfast.

However, the question did not ask about the students' favorite meal of the day, so we cannot draw any valid conclusions about the students' favorite meal.

The valid conclusion:

18% of all students in the eighth grade at Lincoln Junior High School have pancakes as their favorite breakfast, but we cannot conclude anything about the percent of the population who have breakfast as their favorite meal.

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2 years ago
The cost of an item is 100% of its price. What number goes in place of ? in the addition problem?
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I believe this is the complete problem. 

<span>Anton bought a picnic cooler. His total bill, with tax, was $7.95. He paid 6 percent sales tax. How much did he pay for the cooler alone without the tax? The cost of an item is 100% of its price. What number goes in place of ? in the addition problem?
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The answer is the below:

<span>He paid $7.473 without tax because $7.95 x 96% or (0.96) =$7.473</span>
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1 year ago
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Type the correct answer in the box. Round your answer to two decimal places.
Goshia [24]

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1. &amp; 2. In the diagram below, points A, B, and C are collinear. Answer each of the following questions. The figure shown bel
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Answer:

a). AB = 8 in

b). AB = 9.75 in

c). AC = 6.5 in

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Step-by-step explanation:

a). Since, AB = AC + CB

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   BC = 4.75 - 3.25 = 1.5 in.

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B

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