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Reptile [31]
3 years ago
12

Select all statements that are true for density curves.

Mathematics
1 answer:
Cloud [144]3 years ago
7 0

Answer:

The curve is on or above the horizontal axis ⇒ 1st

The total area under the curve is 1 ⇒ 2nd

The proportion of data values between two numbers and is the area

under the curve between a and b ⇒ 4th

Step-by-step explanation:

* Lets explain the meaning of density curve

- Density curve  is a mathematical model for a distribution of a variable

- It is another type of graph that represents a quantitative variables

- It describes the overall pattern of a distribution

- <u><em>Its area is always on or above the horizontal axis</em></u>

- <u><em>Its area under the curve is exactly 1</em></u>

- It can come in many shapes - symmetric, right-skewed, left-skewed

- <u><em>The area under the curve and above any range of values on the </em></u>

  <u><em>horizontal axis is the proportion of all observations that fall in</em></u>

  <u><em>that range</em></u>

- Ex: density curve describes the probability distribution of a

 continuous random variable

 The probability of any event is the area under the curve and above

 the values that make up the event.

* Now lets chose the true statements

# <u><em>The curve is on or above the horizontal axis</em></u>

# <u><em>The total area under the curve is 1</em></u>

# <u><em>The proportion of data values between two numbers and is the area</em></u>

  <u><em>under the curve between a and b</em></u>

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If she drives the car 150 miles, option A costs more. It'll cost $30 more.

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What is the median of the following numbers? 10, 6, 4, 4, 6, 4, 110,6,4,4,6,4,1
tatiyna

Answer:

The median is 4

Step-by-step explanation:

1) You order the numbers in order from smallest to largest: 1, 4, 4, 4, 4, 4, 4, 6, 6, 6, 6, 10, 110

2) Next, you just cross out each number from each side. For example, if you cross out 1 at the beginning, you cross out the 110 at the end and if you cross out the 4 (right after the 1) then you cross out 10 which is the next number in line to the end. You carry on like that until you're left with a lone value in the middle

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The problem is a irrational number

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Please help!!!!<br> I desperately need the correct answer I’ve been trying all day!
zysi [14]

Answer:14708

Step-by-step explanation:Exponential Functions:

y=abxy=ab^x this is not right      not correct

y=ab

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a=starting value = 13000a=\text{starting value = }13000

a=starting value = 13000

r=rate = 2.5%=0.025r=\text{rate = }2.5\% = 0.025

r=rate = 2.5%=0.025

Exponential Growth:\text{Exponential Growth:}

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y=13000(1.025)

x

Put it all together

Plug in time for x:\text{Plug in time for x:}

Plug in time for x:

y=13000(1.025)5y=13000(1.025)^{5}

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y=14708.30677y= 14708.30677

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