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iVinArrow [24]
2 years ago
12

Descriptive statistics are generally used for which of the following? Check all that apply. To make general conclusions about po

pulations using sample data To describe independent variables only To describe dependent variables only To simplify and summarize data
Mathematics
1 answer:
Tom [10]2 years ago
8 0

Answer:

Correct answer is :

To simplify and summarize data

Step-by-step explanation:

Using sample data we can make inferences about a population using statistical methods such as linear regression. But descriptive statistics, as only describe general characteristics of a sample, can be not generalized to a larger population only by descriptive statistics.

Descriptive statistics (DS) can be used to describe dependent or dependent variables alike. If for example you want to predict the income of a person (dependent) in relation to age, education level ( independent) , descriptive statistics may be used to describe both type of variables the age of the sample or the levels of income.

DS are used basically to summarize data or to make it more simple to analyze.

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Two planes, which are 3400 miles apart, fly toward each other. Their speeds differ by 80mph. If they pass each other in 5 hours,
Andreas93 [3]

Answer : The speed of both planes is 61.25 mph and 18.75 mph  respectively.

Explanation:

Let the speed of first plane be x mph

Let the speed of second plane be y mph

Since we have given that difference of speeds is 80 mph

i.e.  x - y= 80   (Eq^n   1)

Distance between two planes = 3400 miles

As they are flying towards each other i.e. they are in the opposite direction.

So, Relative speed  will  be the sum of their speeds i.e.

Relative speed = x + y

And we know speed = \frac{Distance}{Time}

Speed= \frac{3400}{80}

⇒ Speed = 42.5 mph

Hence, Relative speed becomes 42.5 mph

⇒ x+y=42.5  (Eq^n   2)

Now, by using the elimination method of solving the system of equation, we  have ,

x= 61.25 mph

and y = 18.75 mph



4 0
2 years ago
A farmer has 5 cartons of eggs for sale. Each carton contains 12 eggs.
MariettaO [177]

Answer:

10 eggs

Step-by-step explanation:

5 cartons multiplied by 12 eggs each equals 60 eggs in total.

Therefore 5/6 would be equal to 50/60 since we multiply the denominator and numerator by 10

As a result 10 of the eggs are not brown

4 0
2 years ago
William is building a planetary path for people to walk through the planetary path will have a model of the sun and model of the
Andrews [41]
Hi lol ce uhh el len yes Keon
8 0
2 years ago
A cubic box is completely filled with 2,179 g of water. What is the length of one side of the box, in meters? m Explain your rea
lisov135 [29]

Answer:

l\approx 1.296\,cm

Step-by-step explanation:

The water density is approximately 1 gram per cubic centimeter, which means that 1 gram of water occupies a volume of a cubic centimeter. Hence, 2.179 grams occupies a volume of 2.179 cubic centimeters.

Let assume volume occupied by the water has a cube-like shape, whose side has the following measure:

l = \sqrt[3]{2.179\,m^{3}}

l\approx 1.296\,cm

6 0
2 years ago
Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?
lara31 [8.8K]
Group first 2 and group last 2 and find factors and undistribute

(4x^3+x^2)+(-8x-2)
(x^2)(4x+1)+(-2)(4x+1)
x^2(4x+1)-2(4x+1)
answer is first one

6 0
2 years ago
Read 2 more answers
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