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3 years ago

Write two sets of 5 different numbers that have the same mean but different standard deviations

Mathematics

1 answer:

Zina [86]3 years ago

6 0

Answer:

The sets could be 5, 5, 5, 5, 5 and 0, 10, 20, -10, 5

Step-by-step explanation:

Standard deviations are a measure of how far the average point is away from the mean. In the first example, each term is exactly the mean. In the second set, some are quite a distance from the mean and therefore, it would have a bigger standard deviation.

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the mean of 10 students is 16 . When a student is added, the mean becomes 18. Find the age of the student added

MakcuM [25]

Answer:

Step-by-step explanation:

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3 years ago

Explain how solving $2x<-8$ is different from solving $-2x<8$ .

miv72 [106K]

Answer:

When we divide by a negative value, the sign for the inequality changes.

Step-by-step explanation:

2x < -8, to solve we would divide by 2 and receive x < -4. However, in solving -2x < 8, we would divide by negative 2, which would result in x > -4. Clearly, these sequences provide opposite answers and that is a rule to inequalities, that when dividing by a negative number, we must flip the less than/greater than sign.

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3 years ago

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tresset_1 [31]

Answer: b is answer lol i like how u said dis

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3 years ago

Determine the sum of the interior angles of a polygon with 30 sides.

Ghella [55]

Answer:

5040

Step-by-step explanation:

(30-2)x180

3 0

3 years ago

which answer choice is it?

qwelly [4]

Answer:

Step-by-step explanation:

∠ AOC = 90° and

∠ AOB + ∠ BOC = ∠ AOC , that is

x + 8 + 2x = 90

3x + 8 = 90 ( subtract 8 from both sides )

3x = 82 ( divide both sides by 3 )

x = $\frac{82}{3}$

Then

∠ BOC = 2x = 2 × $\frac{82}{3}$ = $\frac{164}{3}$ ≈ 54.67° ( to 2 dec. places )

8 0

3 years ago