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Katarina [22]
2 years ago
13

The equation for the line of best fit is y=2x+2.5. Soon, Edmond is going to a new fair. Use the equation for the line of best fi

t to predict how many tickets he could purchase for $12.50.
Mathematics
1 answer:
andriy [413]2 years ago
4 0

Answer:

x = 5

Step-by-step explanation:

The equation of a line is given by :

y=2x+2.5

Where

y is cost and x is number of tickets

Put y = $12.5 in the above equation

So,

12.5=2x+2.5

10 = 2x

x = 5

So, he can purchase 5 tickets.

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50pts.
Cerrena [4.2K]

Answer:

its the 3rd 1

Step-by-step explanation:

8 0
3 years ago
For a given IQ test, an individual is considered a genius if their score falls more than three standard deviations from the mean
ki77a [65]

Answer:

P(Z>3) = 1-P(Z

So then the probability that an individual present and IQ higher than 3 deviation from the mean is 0.00135

And if we find the number of individuals that can be considered as genius we got: 0.00135*1500=2.025

And we can say that the answer is a.2

Step-by-step explanation:

1) Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

2) Solution to the problem

Let X the random variable that represent the IQ scores of a population, and for this case we know the distribution for X is given by:

X \sim N(\mu=?,\sigma=?)  

We are interested on this probability

P(X>X+3\mu)

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

And we can find the following probablity:

P(Z>3) = 1-P(Z

So then the probability that an individual present and IQ higher than 3 deviation from the mean is 0.00135

And if we find the number of individuals that can be considered as genius we got: 0.00135*1500=2.025

And we can say that the answer is a/2.0

3 0
2 years ago
How do I find the area of a circle when the circumference is 58 pie
aksik [14]
C=2\pir
A=\pir<span>²

C=2</span>\pir=58\pi
2r=58
r=29

A=\pir<span>²
A=29</span><span>²</span>\pi
A=841\pi
8 0
2 years ago
Read 2 more answers
What is absolute value???
Elena L [17]
<span>To remove any negative sign in front of a number, and to think of all numbers as positive (or zero). Example: |5|=5</span>
6 0
3 years ago
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How many 2 over 5 foot pieces can Tara cut from the 4 and 4 over 5 feet of rope
Naddik [55]

Answer:

One.

Step-by-step explanation:

3 0
3 years ago
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