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Alja [10]
3 years ago
7

What would you use to describe the center of the data?

Mathematics
1 answer:
Vika [28.1K]3 years ago
3 0
Do you mean the median? The median is a method of working out the average amount in data by placing all the numbers in ascending order. The number in the middle is the average. If there is no middle, the number in between the two middle numbers is the average. 
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The equation d = 3t gives the distance, d, in meters that Liam swims with respect to time, t, in seconds.
Natasha_Volkova [10]

Answer:

Liam's rate = 3 meters per second

Edgar's rate = 3.2 meters per second

Edgar swims faster

Step-by-step explanation:

<u>Liam:</u>

The equation d=3t gives the distance, d, in meters that Liam swims with respect to time, t, in seconds.

When t=0,\ d=0.

When t=1,\ d=3.

Rate of change:

\dfrac{3-0}{1-0}=3

Liam's rate is 3 metres per second.

<u>Edgar:</u>

When t=20, \ d=64.

When t=40,\ t=128.

Rate of change:

\dfrac{128-64}{40-20}=\dfrac{64}{20}=3.2

Edgar's rate is 3.2 metres per second.

Edgar swims faster.

5 0
3 years ago
What is equivalent to n – 4.6n – 3.3n + 2.8n
Ahat [919]

Answer:

4.1n

Step-by-step explanation:

Let's simplify step-by-step.

n−4.6n−3.3n+2.8n

=n+−4.6n+−3.3n+2.8n

Combine Like Terms:

=n+−4.6n+−3.3n+2.8n

=(n+−4.6n+−3.3n+2.8n)

=−4.1n

7 0
3 years ago
99 POINTS
Sedbober [7]
I got 7x+4 because you distribute then add the X's and the whole numbers together.

6 0
3 years ago
Read 2 more answers
If you wanted to estimate the mean height of all students at a university, which of the following sampling strategies would be b
xenn [34]

Answer:

c.

Step-by-step explanation:

Hello!

To take a sample to estimate the mean height of all students at a university and that the value you reach is statistically valid you need the sampling method to be random and representative of the whole population, in this example, all university students.

a. Measure the heights of 50 students found in the gym during basketball intramurals.

This method is not the best because you would be sampling only basketball players leaving all other students of the university outside, i.e. your sample will not be representative of all the students, just the ones that play basketball.

b. Measure the heights of all engineering majors.

This method is not good, the sample only represents engineering mayors meaning that it does not include the students of any other subjects.

c. Measure the heights of the students selected by choosing the first name on each page of the campus phone book.

With this method you choose students regardless of the sport or major they're are taking, it is more representative of the population of university students, of the three options, this is the best one.

I hope it helps!

4 0
3 years ago
You're standing 80 feet from the base of a building . You estimate that angle of elevation from your feet to the top is about 70
pogonyaev
Probably about (at least) 120 feet.
6 0
3 years ago
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