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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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Find the slope of the line that goes through: (-1, -12) and (9, 68)
dimaraw [331]

Answer:

The slope of the line is 8.

Step-by-step explanation:

The points on the straight line are:

A = (-1, -12)

B = (9, 68)

Compute the slope of the line as follows:

m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

   =\frac{68-(-12)}{9-(-1)}\\\\=\frac{68+12}{9+1}\\\\=\frac{80}{10}\\\\=8

Thus, the slope of the line is 8.

8 0
3 years ago
Let see if this work
allochka39001 [22]

Answer:

i really dont know what you are saying, but thanks for the points and have a nice day! always smile peeps!

3 0
3 years ago
What’s the answer to number 4
Aleks04 [339]
\frac{t}{16} = \frac{40}{50}  \\  \\ t = 16 *  \frac{40}{50}  \\  \\ t = 16 *  \frac{4}{5}  \\  \\ t =  \frac{64}{5}  \\  \\ t = 12.8
6 0
4 years ago
Which points lie on the line that passes through point P and is parallel to the given line? Select three options.
gulaghasi [49]

Answer:

So we have (-1,3), (-2,2) and (-5,-1).

Step-by-step explanation:

So we need to find the equation of the line that is parallel to the blue line going through point P.

The slope of the blue line (count the rise/run) is 1/1=1.

Parallel lines have the same slope.  

So y=mx+b is the slope-intercept form where m is the slope and b is the y-intercept.

So since the blue line has slope 1 and parallel lines have the same slope then the line going through point P will have slope 1 too.

Point P is actually the y-intercept of the line going through P.

So the equation that is parallel to the blue line going through point P is y=1x+4. b was 4 because it was the y-intercept.

You can also just write y=1x+4 as y=x+4.

Testing the points:

(-4,2)?

Does y=x+4 for this point?  2=-4+4 which gives us 2=0 so no for this point.

(-1,3)?

Does y=x+4 for this point?  3=-1+4 which gives us 3=3 so yes for this point.

(-2,2)?

Does y=x+4 for this point?  2=-2+4 which gives us 2=2 so yes for this point.

(4,2)?

Does y=x+4 for this point?  2=4+4 which gives us 2=8 so no for this point.

(-5,-1)?

Does y=x+4 for this point?  -1=-5+4 which gives -1=-1 so yes for this point.

So we have (-1,3), (-2,2) and (-5,-1).

5 0
4 years ago
Read 2 more answers
A circle of 5 cm radius is drawn, and another circle 3 cm radius is drawn. What is the radius of a circle that has the same area
wariber [46]

Answer:

4 cm

Step-by-step explanation:

8 0
3 years ago
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