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3 years ago

PLEASE HELP ME ITS DUE IN A COUPLE OF MINUTES. Please give me the right answer

Mathematics

2 answers:

soldi70 [24.7K]3 years ago

8 0

Answer:

2, just trust me

Step-by-step explanation:

Elina [12.6K]3 years ago

4 0

Answer:

Step-by-step explanation:

i took the test

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The data given below contain the state cigarette taxâ€‹ (in $) for all 20 regions of a country.

g100num [7]

Answer:

(a) $\bar x= 1.583$ -- Population Mean

(b) $s = 1.032$ --- Population standard deviation

Step-by-step explanation:

Given:

Cigarette tax for 20 regions

Solving (a): The population mean

This is calculated as:

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

$\sum x = 1.36 + 1.70 + 2.50 + 0.45 + 1.18 + 0.64 + 3.46 + 0.57 + 2.00 + 0.80 + 1.60 +0.98 + 0.36 + 2.24 + 4.35 + 0.62 + 2.70 + 1.78 + 1.53 + 0.84$

$\sum x = 31.66$

$n = 20$

So, we have:

$\bar x= \frac{31.66}{20}$

$\bar x= 1.583$

Solving (b): The population standard deviation

This is calculated as:

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

$\sum (x -\bar x)^2 = (1.36 - 1.583)^2 + (1.70 - 1.583)^2+ (2.50 - 1.583)^2+ (0.45 - 1.583)^2+ (1.18 - 1.583)^2+ (0.64 - 1.583)^2+ (3.46 - 1.583)^2+ (0.57 - 1.583)^2+ (2.00 - 1.583)^2+ (0.80 - 1.583)^2+ (1.60 - 1.583)^2+(0.98 - 1.583)^2+ (0.36 - 1.583)^2+ (2.24 - 1.583)^2+ (4.35 - 1.583)^2+ (0.62 - 1.583)^2+ (2.70 - 1.583)^2+ (1.78 - 1.583)^2+ (1.53 - 1.583)^2+ (0.84- 1.583)^2$

$\sum (x -\bar x)^2 = 21.29222$

So:

$s = \sqrt{\frac{21.2922}{20}$

$s = \sqrt{1.06461}$

$s = 1.032$

Solving (c):

Population mean tells the average amount while the standard deviation represents the spread from the calculated mean

Option (4) is correct

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3 years ago

Harry's motorboat can make an average of 8 miles per hour. one day he sets out for a trip, only to have the motor break down. ha

melisa1 [442]

He rowed 10 miles in total. YOU'RE WELCOME :D

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4 years ago

35. V112 + V63 How do I solve this please

konstantin123 [22]

Answer: 175V

Step-by-step explanation:

V112+V63=112v+63V

Add them together because the terms are like terms. Therfore, 112V+63V=175V

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3 years ago

Mr. Sims received $3.36 in change from his grocery purchase. If the total amount of his purchase was $56.64, which equation and

polet [3.4K]

Answer:

The answer to your question is x – 56.64 = 3.36; x = 60 because He gave the cashier 60 dollars, and the cashier game him back 3.36 dollars. And 60-$56.64 = $3.36.

Step-by-step explanation:

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3 years ago

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What is the probabilit spinning an A? В В A А B СА СС [?]

tekilochka [14]

25% chance because there are 8 total “slices” and there are 2 A’s.
2/8=1/4=25%

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3 years ago