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Troyanec [42]
2 years ago
8

(CHOOSE 1 CORRECT ANSWER, VERY IMPORTANT QUIZ!!)

Mathematics
2 answers:
Snowcat [4.5K]2 years ago
7 0
I’m not sure is it correct or not but I say the answer is 4
harkovskaia [24]2 years ago
7 0

Answer:

4. a straight line through any points as long as it goes up

Step-by-step explanation:

If the line is straight and goes up then it is proportional so no curves and it cant go down! hope i helped. and if im wrong sorry ._.

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Step-by-step explanation:

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3 years ago
What is the equation of the line that is horizontal and goes through the y-axis<br> at -4?
Ivan
Y = mx + b, m = 0. The equation becomes y = b, where b is the y-coordinate of the y-intercept.
6 0
2 years ago
Read 2 more answers
Mario buys 2 pounds of hamburger and 1 pound of sausage. Sausage costs 10 cents more per pound than hamburger. If the total cost
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7 0
2 years ago
1. A sample consists of 75 TV sets purchased several years ago. The replacement times of those TV sets have a mean of 8.2 years.
Greeley [361]

Answer:

8.2+/-0.25

= ( 7.95, 8.45) years

the 95% confidence interval (a,b) = (7.95, 8.45) years

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 8.2 years

Standard deviation r = 1.1 years

Number of samples n = 75

Confidence interval = 95%

z value(at 95% confidence) = 1.96

Substituting the values we have;

8.2+/-1.96(1.1/√75)

8.2+/-1.96(0.127017059221)

8.2+/-0.248953436074

8.2+/-0.25

= ( 7.95, 8.45)

Therefore the 95% confidence interval (a,b) = (7.95, 8.45) years

3 0
2 years ago
Which questions are statistical questions?
topjm [15]

Answer:

whats the number of the class.

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how many students from each school in this city loves football

what is the height of each student inmy class

how many servings of fruit did I eat each day thus month

8 0
2 years ago
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