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ivann1987 [24]
2 years ago
9

Consider the given density curve.

Mathematics
2 answers:
Arte-miy333 [17]2 years ago
7 0

Answer: 4.5

Step-by-step explanation:

\frac{6+3}{2}=\boxed{4.5}

slava [35]2 years ago
6 0

We want to find the median for the given density curve.

The value of the median is 4.5. ({3+6)/2}

Let's see how to solve this.

First, for a regular set {x₁, ..., xₙ} we define the median as the middle value.

The difference between a set and a density curve is that the density curve is continuous, so getting the exact middle value can be harder.

Here, we have a constant density curve that goes from 3 to 6.

Because it is constant, the median will just be equal to the mean, thus the median is the average between the two extreme values.

Remember that the average between two numbers a and b is given by:(a + b)/2

So we get: m = (6 + 3)/2 = 4.5

So we can conclude that the value of the median is 4.5, so the correct option is the second one, counting from the top.

If you want to learn more, you can read: brainly.com/question/26559908

#SPJ10

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Fifteen seventh graders were randomly selected to see how many pushups in a row they could do. Their data are shown. a. b. 45, 4
GuDViN [60]

Answer: Median = 42

Mean = 43.8

Step-by-step explanation:

When we have a data set of n points {x₁, x₂, ..., xₙ}

The mean is written as:

(x₁ + ... + xₙ)/N

And the median will be the value in the middle of the data set.

So first, let's write our data set in order, from least to greatest.

{36, 36, 38, 40, 40, 40, 42, 42, 43, 45, 45, 48, 48, 70}

So we have 14 values.

The middle value will be at:

(n + 1)/2

(14 + 1)/2 = 7.5

Now, counting from the left, we have that the 7.5th value is 42. (the 7th value is 42, and the 8th value is 42)

So the median is 42.

Now the mean:

M = (36 + 36 +38 +40+40+40+ 42 +42 + 43 + 45 + 45 + 48 + 48 + 70)/14

M = 43.8

8 0
3 years ago
4/5 + 3/15 - 2/3 = pls i wil give brainlyiest calcaulator dosent work so please and whoether uses calculator i will check and i
Greeley [361]
1/3
12+3-10/15
5/15 reduce the fraction
And you get 1/3
3 0
2 years ago
Read 2 more answers
The bill for a meal at a restaurant is $54.00 before taxes are added. The sales tax rate is 8% and you want to leave an 18% tip
tiny-mole [99]
To solve:
Find 8% of 54: 0.08*54=4.32
Find 18% of 54: 0.18*54=9.72

Then add those values plus the bill for the meal all together:
4.32+9.72+54=68.04

Answer: The final bill would be 68.04
4 0
4 years ago
Read 2 more answers
In 2012 William bought a new boat for $28,500 if the value of the boat declined by 8% each year find the value of the boat in 20
nikklg [1K]

Answer:

$17,281.12

Step-by-step explanation:

28,500 * (.92)^x

x - amount of years after 2012

.92 - 100-8 = 92 which is the percent of the price the previous year

Calculator needed.

28,500 * .92^6

28,500 * ~.60636

17,281.1175383

Round up to 17,281.12

8 0
4 years ago
An English class has read the first 384 pages of their novel.
Pavel [41]
X - the total number of pages

75\%x=384 \\
\frac{75}{100}x=384 \\
\frac{3}{4}x=384 \\
x=384 \times \frac{4}{3} \\
x=128 \times 4 \\
x=512

There are 512 pages in the novel.
6 0
3 years ago
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