percent of the observations lie within plus and minus 2.5 standard deviations of the mean is 84%
according to Chebyshev's theorem k=2.5
Chebyshev theorem:
The minimum percentage of observations that are within a given range of standard deviations from the mean is calculated using Chebyshev's Theorem. Numerous other probability distributions can be applied with this theorem. Chebyshev's Inequality is another name for Chebyshev's Theorem.
This indicates that 1 - of the distribution will be close to the mean, or within k standard deviations.
Therefore, 1 -
⇒ 1-
⇒1-
⇒
⇒0.84
percent of the observations lie within plus and minus 2.5 standard deviations of the mean is 84%
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Answer:
Step-by-step explanation:
Hello, great question. These types are questions are the beginning steps for learning more advanced problems.
The Pet-agree company is buying the collars at $1.19. They then have to increase the price in order to make a profit. They decide to mark it up 356% of the cost they paid. In order to calculate the Selling Price we need to first convert the percent into a decimal. We can do this by moving the decimal point two digits to the left.
356.00% ⇔ 3.56
Now we can multiply the decimal by the original cost of the collar.
$1.19 × 3.56 = $4.236
Rounded up the Selling price of the collar would be $4.24. But the question asks us for the amount of the mark up, so we need to subtract the selling price from the buying price.
$1.19 - $4.24 = $3.05
The amount of mark-up from the original price is a $3.05 difference.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
Answer:
-4t
Step-by-step explanation:
9-t-3(t+3)
use distributive property and simplify
= 9-t-3t-9
= -4t
Answer:
$43.66 rounded to the nearest 10 =$40
15% of $40 = $6
Step-by-step explanation:
C. because you would put in the number for an example 4=2(2) and 2+4=6