The average thickness of books on a library shelf is 8.3 centimeters. The standard deviation is 0.6 centimeter. If 20% of the books are oversized, find the minimum thickness of the oversized books on the library shelf. Assume the variable is normally distributed.

Answers

Answer 1

Answer:

Final answer:

To find the minimum thickness of the oversized books, use the z-score formula and solve for x.

Explanation:

To find the minimum thickness of the oversized books on the library shelf, we need to determine the lower cutoff point that includes 20% of the books.

First, we need to find the z-score that corresponds to a cumulative probability of 0.20 from the normal distribution table. The z-score is approximately -0.8416.

Next, we can use the formula z = (x - μ) / σ to find the minimum thickness x. Plugging in the values, we have -0.8416 = (x - 8.3) / 0.6. Solving for x, we find x ≈ 7.9344 centimeters. Therefore, the minimum thickness of the oversized books is approximately 7.93 centimeters.

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Answers

Answer:

B.) the number of tents the army orders

Step-by-step explanation:

The word problem does not speak of any prices or tent sizes so it cant be A or C

Answer:

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Step-by-step explanation:

a chess player played 20 games total. if he won 2 of the games, what is the ratio of games he lost to games he won?

Answers

$20-2=18\n\sf\nSo,~ he~ lost~ 18~ games.\n\ngames~ lost:games~ won\n\nThe~ ratio ~is \n18:2\n\nWhich~ can~ be~ simplified ~to\n9:1$

1. Find the ratio of the Chess player in where he played a total of 20 games and won 2 of the games.
Ratio is considered as the quantitative relationship between to numbers that show the value of both sides.
Now, in the chess game, there are 20 games in all and he won 2 games. To get the ratio of his lose and win, simply subtract 2 from 20
=> 20 -2 = 18
thus, the ratio of the chess game is
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Answers

Answer;

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Answers

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Answer: It is $0.7 per pound.

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