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3 years ago

14

You want to buy an item that costs $100. Which is the most cost-effective choice for buying the item?

1 answer:

ExtremeBDS [4]3 years ago

5 0

Well if you have 100$ you would want to buy something a little under 100 because if you bought something that was exactly 100$ you would need more money because of tax. So it would be best if you buy something that is 95$ instead of something that is exactly 100$!!

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Mars2501 [29]

Answer:

The proportion of memory sticks that will be scrapped is 0.3 = 30%.

Step-by-step explanation:

Uniform probability distribution:

An uniform distribution has two bounds, a and b.

The probability of finding a value of at lower than x is:

$P(X < x) = \frac{x - a}{b - a}$

The probability of finding a value between c and d is:

$P(c \leq X \leq d) = \frac{d - c}{b - a}$

The probability of finding a value above x is:

$P(X > x) = \frac{b - x}{b - a}$

Distributed uniformly between 3mm and 13 mm.

This means that $a = 3, b = 13$

Calculate the proportion of memory sticks that will be scrapped:

$P(X > 10) = \frac{13 - 10}{13 - 3} = \frac{3}{10} = 0.3$

The proportion of memory sticks that will be scrapped is 0.3 = 30%.

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