Ms. Scutter is tiling a bathroom with a length of 9 feet and a width of 8 1/2 feet.The tile she chose sells at $4 per square foo
t How much will Ms.Scutter need to pay for the tiles she needs
2 answers:
You will need to find the area by multiplying the length and width. 8 1/2 can also be written as 8.5, then we multiply the result by 4 to find out how much money she needs to pay. Since it's $4 per square, it only makes sense to multiply the total tiles by 4. You can see how I solved in the picture provided. So she will have to pay $306
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Answer:
0.3874 = 38.74% probability that exactly 9 of the 10 consumers recognize her brand name.
0.6126 = 61.26% probability that the number who recognize her brand name is not nine.
Step-by-step explanation:
For each consumer, there are only two possible outcomes. Either they recognize the name, or they do not. The probability of a customer recognizing the name is independent of anu other customer. This means that the binomial probability distribution is used to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
The brand name of Mrs. Fields (cookies) has a 90% recognition rate.
This means that .
Sample of 10
This means that
Find the probability that exactly 9 of the 10 consumers recognize her brand name.
This is P(X = 9). So
0.3874 = 38.74% probability that exactly 9 of the 10 consumers recognize her brand name.
Also, find the probability that the number who recognize her brand name is not nine.
1(100%) subtracted by those who recognize. So
1 - 0.3874 = 0.6126
0.6126 = 61.26% probability that the number who recognize her brand name is not nine.