<span>A. Kodak DCS 100
</span>
The Kodak Professional Digital Camera System or DCS, later unofficially named DCS 100, was the first commercially available digital single-lens reflex (DSLR) camera.
Because it was a church day <span>On Sundays the military relaxed discipline
somewhat, allowing soldiers and sailors to go on leaving for the weekend,
or to sleep in an extra hour in the morning.</span>
The regression model that best fit the data set is : Y=10.35-0.0467X
Explanation:
The equation of a regression line is given by;
Y=a+bX where b is the slope of the line a is the y-intercept , Y is the dependent variable and X is the independent variable
The slope b is given by;
b = n(∑xy)-(∑x)(∑y) / n(∑x² )-(∑x)²
a=(∑y)(∑x²)-(∑x)(∑xy) /n(∑x²)-(∑x)²
n is the sample size = 4
Form a table as;
x y xy x² y²
2 13 26 4 169
4 8 32 16 64
5 7.5 37.5 25 56.25
8 12 96 64 144
<u>19 40.5 191.5 109 433.25--------sum</u>
<u></u>
a=(∑y)(∑x²)-(∑x)(∑xy) /n(∑x²)-(∑x)²
a=(40.5)(109) - (19)(191.5) / 4(109) - (19)²
a=(4414.5 - 3638.5) / (436-361)
a=776/75
a=10.35
b = n(∑xy)-(∑x)(∑y) / n(∑x² )-(∑x)²
b=4(191.5)-(19)(40.5) / 4 (109)-19²
b=766-769.5 /436-361
b=-3.5/75
b= - 0.04667
The model will be represented by the equation;
Y=10.35 -0.0466X
Learn More
Regression Model: brainly.com/question/10209928
Keyword : regression, model, best fit, data set
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According to the statement, Fulton got popular credit for ""inventing the steamboat" is "True".
<h3>
Who invented the steamboat?</h3>
The first successful steamboat was the Clermont. John Fitch invented the steamboat on August 26, 1791.
The term steamboat is defined as smaller, steam-powered boats that are working on the lakes.
The success of this steamboat changed river traffic along with the trade on major American rivers.
Therefore, correct answer is True.
Learn more about steamboat, refer to the link:
brainly.com/question/777070
<span>This is true. The republican party is the one that fought for a change and supported the end of slavery. The democrat party supported slavery and eventually the civil war came and the slavery era ended under president Lincoln who was a Republican until his assassination in 1865.</span>
