2 years ago

A company makes 80 bags.

Mathematics

1 answer:

tigry1 [53]2 years ago

3 0

I would tell you darling but they don’t make 80 did you add a mistake to the numbers?

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Although bats are not known for their eyesight, they are able to locate prey (mainly insects) by emitting high-pitched sounds an

Sergeu [11.5K]

Answer:

$Mean = 48.6364$

$s^2 = 331.8545$ -- Sample Variance

$s = 18.2169$ --- Sample Standard Deviation

Step-by-step explanation:

Given

$n = 11$

$Data: 24, 41 ,25 ,68 ,53 ,83 ,43 ,63 ,56 ,34 ,45$

Solving (a): The sample mean

$Mean = \frac{\sum x}{n}$

So:

$Mean = \frac{24 +41 +25 +68 +53 +83 +43 +63 +56 +34+ 45}{11}$

$Mean = \frac{535}{11}$

$Mean = 48.6364$

Solving (b): Sample variance (s^2)

This is calculated as:

$s^2 = \frac{\sum (x - \bar x_i)^2}{n - 1}$

Where:

$\bar x = 48.6364$

So:

$s^2 = \frac{(24 -48.6364)^2 +(41 -48.6364)^2 +......................+( 45 -48.6364)^2}{11-1}$

$s^2 = \frac{3318.54545456}{10}$

$s^2 = 331.8545$

Solving (c): Sample Standard Deviation (s)

This is calculated as:

$s = \sqrt {s^2$

$s = \sqrt{331.8545$

$s = 18.2169$

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3 years ago

Last year, Scout Troop # 85 sold 540 boxes of cookies. This year, they sold 783 boxes. What was the percent increase in the numb

lesantik [10]

Difference/original
783 - 540 = 243
243/540 = 0.45
0.45 * 100 = 45
45% = increased percentage

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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P-1 = 5p+8p-8
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7 = 12p (minus p from both sides)
7/12 = p (divide both sides by 12)
p = 7/12

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4 years ago

Read 2 more answers