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Keith_Richards [23]
3 years ago
5

A company produces breakfast cereal. The true mean weight of the contents of its cereal packages is 20 ounces, and the standard

deviation is 0.6 ounce. The population distribution of weights is normal. Suppose that you purchase four packages, which can be regarded as a random sample of all those produced.
a. What is the standard error of the sample mean weight?



b. What is the probability that, on average, the contents of these four packages will weigh fewer than 19.7 ounces?



c. What is the probability that, on average, the contents of these four packages will weigh more than 20.6 ounces?



d. What is the probability that, on average, the contents of these four packages will weigh between 19.5 and 20.5 ounces?



e. Two of the four boxes are chosen at random. What is the probability that the average contents of these two packages will weigh between 19.5 and 20.5 ounces?
Mathematics
1 answer:
RUDIKE [14]3 years ago
5 0

Answer:

follow me @peachllings

Step-by-step explanation:

and @wtfpeachess

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B. <span>2x + 4 = 49

It is because a triangle has 2 sides and the question shows that 2 triangles equal the same so that becomes 2x. The third side is 4 so u add that to 2x which becomes 2x+4 and the perimeter equals 49 so basically the equation should be </span>2x + 4 = 49.

<u>ANOTHER EXPLANATION:
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The equation for perimeter is P=L+W
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7x^15yz

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The second statement is the<br> of the first.<br> Foundations of Geometry
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i think its c. contrapositive

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Suppose R = {1,3,5,7,9,11,13,15,17} and D={3,6,9,12,15,18,21,24,27} r d
Free_Kalibri [48]

The intersection of sets R and D is give by the following set:

R ∩ D = {3, 9, 15}.

<h3>What is the missing information?</h3>

This problem is incomplete, but researching it on a search engine, we find that it asks the intersection of sets R and D.

<h3>What is the set that is the intersection of two sets?</h3>

The set that is the intersection of two sets is composed by the elements that belong to both sets.

For this problem, the sets are given as follows:

  • R = {1,3,5,7,9,11,13,15,17}.
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Hence the intersection is given by:

R ∩ D = {3, 9, 15}.

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More can be learned about intersection of sets at brainly.com/question/11439924

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2710 is the answer

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