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user100 [1]
2 years ago
14

Please answer questions in complete sentences!

Computers and Technology
1 answer:
Troyanec [42]2 years ago
7 0

i need help on that too :cc

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A testing lab wishes to test two experimental brans of outdoor pain long each wiil last befor fading . The testing lab makes six
Simora [160]

Answer:

The answer is "\bold{Brand \ A \ (35, 350, 18.7) \ \ Brand \ B \ (35, 50, 7.07)}"

Explanation:

Calculating the mean for brand A:

\to \bar{X_{A}}=\frac{10+60+50+30+40+20}{6}  =\frac{210}{6}=35

Calculating the Variance for brand A:

\sigma_{A}^{2}=\frac{\left ( 10-35 \right )^{2}+\left ( 60-35 \right )^{2}+\left ( 50-35 \right )^{2}+\left ( 30-35 \right )^{2}+\left ( 40-35 \right )^{2}+\left ( 20-35 \right )^{2}}{5} \\\\

     =\frac{\left ( -25 \right )^{2}+\left ( 25  \right )^{2}+\left ( 15\right )^{2}+\left ( -5 \right )^{2}+\left ( 5 \right )^{2}+\left ( 15 \right )^{2}}{5} \\\\ =\frac{625+ 625+225+25+25+225}{5} \\\\ =\frac{1750}{50}\\\\=350

Calculating the Standard deviation:

\sigma _{A}=\sqrt{\sigma _{A}^{2}}=18.7

Calculating the Mean for brand B:

\bar{X_{B}}=\frac{35+45+30+35+40+25}{6}=\frac{210}{6}=35

Calculating the Variance for brand B:

\sigma_{B} ^{2}=\frac{\left ( 35-35 \right )^{2}+\left ( 45-35 \right )^{2}+\left ( 30-35 \right )^{2}+\left ( 35-35 \right )^{2}+\left ( 40-35 \right )^{2}+\left ( 25-35 \right )^{2}}{5}

    =\frac{\left ( 0 \right )^{2}+\left ( 10 \right )^{2}+\left ( -5 \right )^{2}+\left (0 \right )^{2}+\left ( 5 \right )^{2}+\left ( -10 \right )^{2}}{5}\\\\=\frac{0+100+25+0+25+100}{5}\\\\=\frac{100+25+25+100}{5}\\\\=\frac{250}{5}\\\\=50

 Calculating the Standard deviation:  

\sigma _{B}=\sqrt{\sigma _{B}^{2}}=7.07

4 0
3 years ago
PLEASE HELP ILL GIVE POINTD AND BRAINLIEST
Nastasia [14]

Answer:

I would have to say C.

Explanation:

Feel free to correct me if i'm wrong :)

Hope this helps

4 0
3 years ago
What is an algorithm?
hichkok12 [17]
D. Both A and C. In my opinion though...
8 0
3 years ago
In Microsoft Word, when you highlight existing text you want to replace, you are in
Lina20 [59]
The correct answer is C. Typeover mode

This is when you select a text and can then type over it and it automatically replaces it with what you're writing. It also creates a little box that lets you edit the selected part easily if that's what you need with things like bold or italic or change the text color.
4 0
3 years ago
"The first published news of the massive electronic data collection by the National Security Agency came from what British newsp
aksik [14]

Answer:

The Guardian

Explanation:

PRISM is a code name for a program under which the US National security Agency collects internet communications from various US Internet companies.

PRISM was publicly revealed when classified documents about the program were leaked to journalists of The Washington Post and The Guardian by Edward Snowden (as a NSA contractor) during a visit to Hong Kong  . The leaked documents included 41 power point slides , four of which are published in news article.

Snowdown's subsequent disclosures included statement that government agencies such as the UK's GCHQ also undertook mass interception  and tracking of internet and communication data.

3 0
3 years ago
Read 2 more answers
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