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2 years ago

Is it possible for discrete data to be modeled by a normal distribution? If so, give an example.

Mathematics

2 answers:

Inga [223]2 years ago

6 0

Answer:yes

Step-by-step explanation:

12 57

Basile [38]2 years ago

4 0

It is possible for discrete data to be modeled by a normal distribution.

If we toss a few coins and count the number of heads we get a binomial distribution which depends on the number of coins tossed. If we toss a thousand coins and count heads, the distribution we get will still be a binomial distribution. But we can model it as a normal distribution, with 500 heads as the mean and the usual bell shape around it.

It's not really a normal distribution. If we zoomed in we'd still see it's not possible to get 500.5 heads as it would be in a true normal distribution. But the normal distribution is a good approximation to the binomial distribution for big N.

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Y=-1,X+2y=-6 solve by substitution show all work

aev [14]

Answer:

$x=-4$

Step-by-step explanation:

$x+2y=-6$

$y=-1$

_________

$x+2\left(-1\right)=-6$

$x-2\times \:1=-6$

Multiply: 2*1= 2

$x-2=-6$

Add 2 to both sides:

$x-2+2=-6+2$

$x=-4$

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5 0

2 years ago

Read 2 more answers

(-6,1) is a point on the graph of y=g(x)

NNADVOKAT [17]

Answer:

$(-7, -4)$

$(-4, 2)$

$(-4, 1)$

Step-by-step explanation:

We know that the point (-6, 1) belongs to the main function g(x)

The transformation

$y = g (x + 1) -5$

add 1 to the input variable (x) and subtract 5 to the output variable (y)

So the point in the graph of $y = g (x + 1) -5$ is

$x + 1 =-6\\x = -7$

$y= 1-5\\y = -4$

The point is: $(-7, -4)$

The transformation

$y = -2g(x -2) +4$

subtract two units from the input variable (x), multiply the output variable (y) by -2 and then add 4 units

So the point in the graph of $y = -2g(x -2) +4$ is

$x -2 =-6\\x = -4\\\\y = -2(1)+4\\y = 2$

The point is: $(-4, 2)$

The transformation

$y=g(2x+2)$

Multiply the input variable (x) by 2 and then add two units

So the point in the graph of $y=g(2x+2)$ is

$2x +2 =-6\\2x = -8\\x=-4$

$y=1$

The point is: $(-4, 1)$

3 0

2 years ago

The telephone company offers two billing plans for local calls. Plan 1 charges $30 per month for unlimited calls and Plan 2 char

Basile [38]

Answer:

Step-by-step explanation:

CHECK THE COMPLETE QUESTION

The telephone company offers two billing plans for local calls. Plan 1 charges $30 per month for unlimited calls and Plan 2 charges $15 per month plus $0.04 per call.

a. Use an inequality to find the number of monthly calls for which Plan 1 is more economical than Plan 2.

b. Explain the meaning of the answer to part

We can denote the number of calls as "y"

From plan 1, the Total monthly charge is $30

From plan 2, the Fix charge is $15 with $0.04 per call

We can expressed the cost of "y" call as( $0.04y)

From plan2, The monthly charge can be expressed as (0.04x + 15)

a. Use an inequality to find the number of monthly calls for which Plan 1 is more economical than Plan 2.

Here, Plan 1 is more economical than plan 2.

0.04y + 15 > 30

Collect like terms we have

0.04y > 30-15

0.04y> 15

y > 375

b) in case, more than 375 calls are made,then the economical plan is plan 1

5 0

2 years ago

F(x) =x^2+4x find f( -7)

Yuliya22 [10]

Answer:

Step-by-step explanation:

7 0

2 years ago

what is an equation or step by step for this question, please. equation for the graph, where y depends on x.

Alexeev081 [22]

Y=-x+4
Your slope is shown as (rise over run) -2/2 which is simplified to -1 so you just write -x, and your y intercept falls on 4 on the y axis. Y is dependent on x because whatever x variable you plug in will give you y. Ex: (2,?) we plug in 2 Y=-(2)+4, and get 2 so (2,2), which is confirmed by the graph.

7 0

2 years ago

Is it possible for discrete data to be modeled by a normal distribution? If so, give an example.​

Is it possible for discrete data to be modeled by a normal distribution? If so, give an example.