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antiseptic1488 [7]
3 years ago
6

The graph shows a probability distribution. What is P(1.5 ≤ X ≤ 3)? Enter your answer, as a decimal, in the box.

Mathematics
1 answer:
Bumek [7]3 years ago
5 0
The probability from 1.5 ≤ x ≤ 3 can be calculated by dividing the Area from x=1.5 to x=3 by the total Area of the distribution. 

The given distribution is rectangular shaped, so its Area will be = Length x Width = 1 x 3 = 3 square units

From x = 1.5 to x = 3, the length is 1.5 and width is 1. So the area between these two intervals = 1.5 square units.

Thus, <span>P(1.5 ≤ X ≤ 3) = 1.5/3 = 0.5
</span>
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A rare coins value can be modeled with the equation W(x)=250(1.085)^x where x represents the number of years since the coin was
alina1380 [7]

Answer:

250 is the initial value and 1.085 is the growth factor.

Step-by-step explanation:

A rare coin's value can be modeled with the equation

W(x) = 250(1.085)^{x} ................. (1)

where x represents the number of years since the coin was first purchased and W(x) is the current worth of the coin.

Now, this equation (1) is an exponential growth function.

Here, 250 is the initial value as we get W(x = 0) = 250 and 1.085 is known as the growth factor which can not be equal to 1. (Answer)

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An equilateral triangle has a perimeter of 12x+18 units. Which expression can be used to show the length of one side of the tria
SpyIntel [72]
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3 years ago
A survey of 391 children given at a local elementary school showed that 150 like chocolate ice cream 125 like pistachio ice crea
creativ13 [48]

Answer: The correct answer is 341 children

Step-by-step explanation:

Firstly you solve for the number of children that like both types of ice cream.

Let us assume it to be x

(150 - x )+ x + (125 - x) + 166 = 391

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Therefore, 391 - 50 = 341 children

Alternatively,

Sum up children who like only chocolate ice cream + pistachio ice cream only + does who don't like any type of ice cream

= (150 - 50) + (125 - 50) + 166

= 100 + 75 + 166

= 341 children

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Answer:

it is just google it

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