A researcher wants to study the effects of sleep deprivation on motor skills. Nine people volunteer for the experiment: Amanda, Brian, Christine, David, Emily, Fred, George, Heather, and Ivan. Use the third row of digits in the random number table below to select a simple random sample of three subjects (ignore zeros). The other six subjects will go into the control group. If the subjects are numbered 1 through 9 alphabetically, what are the numbers of the three subjects selected? List the subjects that will go in the treatment group.

\begin{tabular}{|l|l|l|l|l|}\hline Line/Column & (1) & (2) & (3) & (4) \\ \hline 1 & 37330 & 87385 & 32323 & 71009 \\ \hline 2 & 46254 & 15935 & 65321 & 89215 \\ \hline 3 & 65216 & 32341 & 68693 & 55931 \\ \hline \end{tabular}

What are the numbers of the three subjects selected?

The three subjects, in the order selected, are Brian, Emily, and Fred.

the note book costs $5.58 ;

Answered by cringeyty1093 | 2024-06-12

The cost of **notebook **is $3.49.
What is a word problem?
A word problem is a verbal **description **of a problem situation. It consists of few sentences describing a ' real-life ' scenario where a problem needs to be solved by way of a **mathematical **calculation.
For the given situation,
Let the **cost **of **pencil **box be x
Let the **cost **of **notebook **be y
Total **cost **= $6.28
⇒ x + y = 6.28 − − − − − ( 1 )
The **notebook cost **$0.70 more than the **pencil **box,
⇒ y = x + 0.70 − − − − − ( 2 )
Now substitute equation 2 in equation 1,
⇒ x + x + 0.70 = 6.28
⇒ 2 x = 6.28 − 0.70
⇒ x = 2 5.58 ​
⇒ x = 2.79
∴ y = 6.28 − 2.79
⇒ y = 3.49
Hence we can conclude that the cost of **notebook **is $3.49.
Learn more about **word problems **here
brainly.com/question/20594903
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Answered by KarpaT | 2024-06-16

The notebook costs $3.49. The cost of the pencil box is $2.79. Together they total $6.28.
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Answered by KarpaT | 2024-09-11