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andreyandreev [35.5K]
4 years ago
12

Which statements are true about statistics? Check all that apply.

Mathematics
2 answers:
Nadya [2.5K]4 years ago
5 0
1, 2, and 4 are correct answers
nignag [31]4 years ago
4 0

Statement 1 is true : As statistics helps in describing the data. statistics does data analysis.

Statement 2 and 4 are true : Measures of spread describe how similar or varied the set of observed values are for a particular data. It also include the range, quartiles and the interquartile range, variance and standard deviation.

So statement 1,2 and 4 are true

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45 degrees

Step-by-step explanation:

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3 years ago
The ratio of cows to chickens on Jack's farm is 3:5. Choose ALL correct statements that describe this relationship.
aivan3 [116]
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Y=-6x-2, y=-6x-2 how many solutions are in it
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8 0
2 years ago
Two computers just scanned for viruses at the same time. Computer A runs a virus scan every 2.75 days. Computer B runs a virus s
Elis [28]

Let the time taken by computer for virus scan be, 'x' days

We are given that Computer A runs a virus scan in every 2.75 days and Computer B runs a virus scan in every 3.5 days.

<h3>Amount of work done by computer A⤵️</h3>

Amount of work done in one day = \tt\frac{1}{2.75}

Amount of work done in x days = \tt\frac{x}{2.75}

<h3>Amount of work done by Computer B⤵️</h3>

Amount of work done in one day = \tt\frac{1}{3.5}

Amount of work done in x days = \tt\frac{x}{3.5}

Since, They are doing the same work the amount of work done is 1.

\sf \:  \frac{x}{2.75}  +  \frac{x}{3.5}  = 1

Solve for x ~

\sf \frac{x}{ \frac{11}{4} }  +  \frac{x}{ \frac{7}{2} }  = 1

\sf \frac{4x}{11}  +  \frac{2x}{7}  = 1

\sf \: 28x + 22x = 77

\sf \: 50x = 77

\sf \: x =  \frac{77}{50}

\boxed{ \bf \: x = 1.54}

➪ <em>Thus, the time taken when both computers run a virus scan at the same time again is, 1.54 days</em>

8 0
2 years ago
Simplify. –4 ∙ 6 – 6 ∙ (–5) A. –54 B. –6 C. 6 D. 150
tino4ka555 [31]


Use BIDMAS (or BODMAS)

(-4x6)-(6x-5)=-24+30=6

8 0
4 years ago
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