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3 years ago

How are measures of center different from measures of variation ?

1 answer:

7 0

Measures of center for numbers summarizes it in one number.

measures of variation how its values vary with a single number.

You might be interested in

! URGENT ! -1 3/5 ÷ (-2/3) = ?

svetoff [14.1K]

Convert 1 3/5 to an improper fraction;

-1 × 5 + 3/5 ÷ -2/3

Simplify 1 × 5 to 5

-5 + 3/5 ÷ -2/3

Simplify 5 + 3 to 8

-8/5 ÷ -2/3

Use this rule: a ÷ b/c = a × c/b

-8/5 × 3/-2

Use this rule; a/b × c/d = ac/bd

-8 × 3/5 × - 2

Simplify 8 × 3 to 24

-24/5 × -2

Simplify 5 × -2 to -10

- 24/-10

Move the negative sing to the left

-(-24/10)

Simplify 24/10 to 12/5

-(-12/5)

Simplify brackets

12/5

Convert to a mixed fraction

= 2 2/5

8 0

3 years ago

A coffee dispensary uses ⅘ of a barrel of coffee beans per batch of coffee they ship. Yesterday, the dispensary used 3 ⅕ of a ba

KengaRu [80]

Answer:

4 batches

Step-by-step explanation:

First, you need to convert the mix number into a single fraction:

3 1/5 = 16/5 total barrels of coffee beans used

This allows us to divide the numbers easier in the next step.

Next, because each batch uses 4/5 of a barrel of beans, you need to divide 16/5 by 4/5:

(16/5) / (4/5) = 16/4 = 4 batches

(The fives cancel out because they are the same divisor.)

I hope this helps!

-TheBusinessMan

4 0

4 years ago

The air temperature is -6 degrees celsius every hour for several hours. The air temperature after x hours is represented by the

andreyandreev [35.5K]

Answer:

x-intercept is (2,0) [The x-intercept means that it takes 2 hours for the temperature to reach 0°C]

y-intercept is (0, -6) [The y-intercept represents the temperature at sunrise, -6°C]

Step-by-step explanation:

Complete Question:

The air temperature is -6 degrees celcius at sunrise and rises 3 degree celcius every hour for several hours. The air temperature after x hours is represented by the function f(x) = 3x - 6. Find the x-intercept and y-intercept and interpret their meaning.

The x-intercept is the x-axis cutting point found by setting y = 0 [function = 0]
The y-intercept is the y-axis cutting point found by setting x = 0

Lets find x-intercept first:

f(x) = 3x - 6

0 = 3x - 6

3x = 6

x = 6/3

x = 2

x-intercept is (2,0)

Now, lets find y-intercept:

f(x) = 3x - 6

f(x) = 3(0) - 6

f(x) = -6

y-intercept is (0, -6)

The x-intercept means that it takes 2 hours for the temperature to reach 0°C

The y-intercept represents the temperature at sunrise, -6°C

3 0

3 years ago

Annie graphed how many books in the school library are about her favorite subjects.

sergij07 [2.7K]

Answer:

100

Step-by-step explanation:

25+15+30+40-10=100

6 0

4 years ago

Use left-endpoint approximation to estimate the area under the curve of f(x)=x^3 on [1,3]. Use n = 4. Using the same function us

natulia [17]

Split up the interval [1, 3] into 4 intervals of equal length,

$\Delta x = \dfrac{3 - 1}4 = \dfrac12$

The left endpoint of the $i$ -th interval is

$\ell_i = 1 + \dfrac i2$

The area under the curve is then approximately

$\displaystyle \int_1^3 f(x) \, dx \approx \sum_{i=1}^4 f(\ell_i)\Delta x \\\\ ~~~~~~~~ = \frac12 \sum_{i=1}^4 \left(1 + \frac i2\right)^3 \\\\ ~~~~~~~~ = \frac12 \sum_{i=1}^4 \left(1 + \frac{3i}2 + \frac{3i^2}4 + \frac{i^3}8\right) = \boxed{27}$

6 0

1 year ago