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sattari [20]
3 years ago
6

The distribution of exam scores (ranging from 0 - 100%) where the mean score is 75%, the standard deviation is 12%, and the medi

an is 78% is most likely _________.
Mathematics
1 answer:
AnnyKZ [126]3 years ago
6 0

Answer:

Right skewed

Step-by-step explanation:

A skewed right distribution by definition is "one in which the tail is on the right side".Or on simple words when we have the following property:

Mode

Or equivalently:

Mean> Median>Mode

A skewed left distribution by definition is "one in which the tail is on the left side". Or on simple words when we have the following property:

Mode>Median>Mean

Or equivalently:

Mean< Median

And for this case we can see that Mean =75> Median =78

So on this case the best description for this distribution is right skewed.

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Which of the following fractions is equivalent to 0.45? 4/5 2/5 9/20 9/200
exis [7]
45/100
Simplify the fraction by diving by the largest possible factor
45 divided by 5 = 9
100 divided by 5 = 20
9/20
9/20 = 0.45
4 0
3 years ago
Flying against the wind, an airplane travels 3200 kilometers in 5 hours. Flying with the wind, the same plane travels 6300 kilom
Arisa [49]

Answer:

1300

Step-by-step explanation:

6300

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1300

 

4 0
2 years ago
Determine if the expression -80 – 9c4d2 is a polynomial or not. If it is a
Shalnov [3]

Answer:

- 8c - 9c4 d2 - 8c - 9c is a polynomial of type binomial and has a degree 6.

4 0
3 years ago
Which numbers are rational? select all that apply. A. pi B. √50 C. 2.3 D. √144
aev [14]
C. 2.3
D.√144


Rational roots or decimals are numbers that have an end point. 

pi 'technically' never ends, while √50 = 7.07106781<span>…, which never ends either
</span>

hope this helps
5 0
3 years ago
Read 2 more answers
Please help! Greatly appreciated sorry for really bad quality
Degger [83]
The first answer.

Point P is at (50,-40) the distance from Q to P is 80 units which you can find by subtracting the x of Q (-30) from the x of P (50).
50-(-30)=80
It then tells you point R is vertically above point Q so you know your x value for R will be the same as Q.
Add your distance from Q to P of 80 units to the y value of Q because you are traveling up.
-40+80=40
R will have a point of (-30,40) and a distance of 80 units
7 0
3 years ago
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