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Kobotan [32]
4 years ago
12

Does the frequency distribution appear to have a normal distribution using a strict interpretation of the relevant criteria. IQ

score 50-69,70-89, 90-109, 110-129, 130-149 frequency 24, 228, 490, 232, 26
No, the distribution does not appear to be normal.

Yes, all the requirements are met.

No, the frequencies do not decrease from the maximum frequency to a low frequency.
Mathematics
2 answers:
Ksju [112]4 years ago
6 0

No, the frequencies do not decrease from the maximum frequency to a low frequency

kenny6666 [7]4 years ago
4 0

Answer:

Yes, all the requirements are met.

Step-by-step explanation:

Frequency Distribution is a graph or table which shows the frequency of different outcome.

Normal Distribution has bell like-shape.

Since here the value of frequency is less for score 50-69 then it increases from 70- 109 then the frequency is again decreasing from score 110-149. So the curve of frequency distribution when plotted appears like bell-shaped. Hence, It appears like a normal distribution.

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an arts academy requires there to be 3 teachers for every 75 students and 6 tutors for every 72 students. How many students does
Zinaida [17]
Each teacher has 25 students. 75/3 would be 25. I hope this helped!
5 0
4 years ago
How to solve using substitution<br> y=3/4X+5<br> 4x-3y=-1
Pachacha [2.7K]
Please, use parentheses to enclose each fraction:
y=3/4X+5 should be written as <span>y=(3/4)X+5

Let's eliminate the fraction 3/4 by multiplying the above equation through by 4:

4[y] = 4[(3/4)x + 5]
Then 4y = 3x + 20
(no fraction here)

Let 's now solve the system   

4y=3x + 20
4x-3y=-1

We are to solve this system using subtraction.  To accomplish this, multiply the first equation by 3 and the second equation by 4.  Here's what happens:

12y = 9x + 60  (first equation)
16x-12y = -4, or -12y = -4 - 16x (second equation)

Then we have 

 12y = 9x + 60
-12y =-16x - 4

If we add here, 12y-12y becomes zero and we then have 0 = -7x + 56.
Solving this for x:  7x = 56; x=8

We were given equations   
</span><span>y=3/4X+5
4x-3y=-1

We can subst. x=8 into either of these eqn's to find y.  Let's try the first one:

y = (3/4)(8)+5 = 6+5=11

Then x=8 and y=11.

You should check this result.  Subst. x=8 and y=11 into the second given equation.  Is this equation now true?</span>
5 0
3 years ago
Which principle prevents a government from becoming too powerful?
tino4ka555 [31]

Comment: I think you got this in the wrong section but I’ll still answer it anyways.

Actual Answer: system of checks and balances

Step-by-step explanation: A system of checks and balances stops one branch of government from becoming too powerful.

Additional Note: I hope that this helps you and have a wonderful day!

7 0
3 years ago
the equation of the line / is -3y+4x=9. write the equation of a line that is parallel to the line / and passes through the point
nekit [7.7K]

Hey!

So before trying to figure out the equation of the line, lets change -3y+4x = 9 into slope-intercept form:

-3y + 4x = 9

-3y = -4x + 9

y = (4/3)x - 3

Now that you have the equation in slope-intercept form we can find the equation of the line parallel to this. One thing that we are given from this equation is the slope of the line, the slope for two parallel lines are the same. So we know that the slope of the line is 4/3. We are also given another point on the line and we can plug this point in for y and x to find the y-intercept or b:

6 = (4/3)(-12) + b

6 = -16 + b

22 = b

Now that we know b, we have both the y-intercept and the slope so our equation would be:

y = (4/3)x + 22

4 0
3 years ago
If a smoothie recipe calls for 8 pints of mango juice but only 10 cups of mango juice are available, what is the scaling factor
mezya [45]
The amount of recipes is 6
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4 years ago
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