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Using the division rule, the better buy is that Brand C gives 8.85 ounces for $1. Then the Brand C is better than Brand A, Brand B, and Brand D.
<h3>What is division?</h3>The division means the separation of something into different parts, sharing of something among different people, places, etc.
Given
The brand that is the better buy.
1. Brand A: $2.16 for 18 ounces
So in $1, the ounces will be
Brand A gives 8.33 ounces for $1.
2. Brand B: $1.50 for 12 ounces
So in $1, the ounces will be
Brand B gives 8 ounces for $1.
3. Brand C: $2.26 for 20ounces
So in $1, the ounces will be
Brand C gives 8.85 ounces for $1.
4. Brand D: $1.95 for 16 ounces
So in $1, the ounces will be
Brand D gives 8.21 ounces for $1.
Thus, Brand C gives 8.85 ounces for $1.
More about the division link is given below.
Answer:
And adding we got:
Step-by-step explanation:
Previous concepts
The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".
Solution to the problem
Let X the random variable of interest, on this case we now that:
Where 1-p = 1-0.1=0.9 represent the probability of being NOT defective
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
And we want to find this probability:
And adding we got: