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Sholpan [36]
3 years ago
11

100 points and brainliest The data to represent average test scores for a class of 16 students includes an outlier value of 78.

If the mean, including the outlier of 78, equals 84, which statement is always true about the new data when the outlier is removed? The mean would increase. The mean would decrease. The median would increase. The median would decrease.
Mathematics
2 answers:
valkas [14]3 years ago
6 0

Answer:

The mean would Increase.

Step-by-step explanation:

If you take out the low score, then the average score of the class would go up.

otez555 [7]3 years ago
4 0

Answer:

If the mean, including the outlier is 84 and the outlier is below the mean, then if the outlier is removed then the median could increase, it definitely wouldn't decrease, but the new mean would definitely increase.

Step-by-step explanation:

16 x 84 = 1344

if you take out the outlier 1344 - 78 = 1266

1266/15 = 84.4 new mean when outlier is removed.

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Brilliant_brown [7]

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Step-by-step explanation:


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2 years ago
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Anton [14]
49/8=6 (nearest whole number)
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2 years ago
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Add.
Sidana [21]

Answer:

1\frac{7}{20}

Step-by-step explanation:

1. Convert the mixed number to an improper fraction to match the rest of the problem (this just makes it easier for now, the answer will still be a mixed number)

-1\frac{4}{5} becomes \frac{9}{5}

2. Re-write the new equation. When there is a "+" in front of a set of parentheses the expression doesn't change aside from removing the plus signs.

The new equation becomes

\frac{9}{5} - \frac{1}{4} -\frac{1}{5}

3. Calculate. Just work out the new expression.

The answer is \frac{27}{20}

4. Convert to a simplified mixed decimal.

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8 0
2 years ago
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Roman55 [17]

Answer:

2nd option

Step-by-step explanation:

A difference of squares has the general form

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The only one fitting this description is

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2 years ago
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