AnswersOC27 GEO-1206310-S2-Degele-VOL7006PVolume of Cylinders, Cones, and Spheres

Volume of Cylinders, Cones, and Spheres Answers

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1
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The data set on the right represents a sample of the population✔ the population.

Answer not available
2
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Which formula should be used to calculate the variance?

Answer:

sigma^2 = sum(x - mu)^2 / n

3

What is the variance? ⇒ 58.5

Answer:

32

6

What is the variance? What is the standard deviation?

Answers:
Selection 1:864
Selection 2:29.4
7

What is the standard deviation?

Answer not available
16

A contractor records the areas, in square feet, of several houses in a neighborhood to determine data about the neighborhood. Which formula should be used to calculate the standard deviation?

A
mc001-1.jpg
Option A
B
mc001-2.jpg
Option B
C
mc001-3.jpg
Option C
D
mc001-4.jpg
Option D
17

Why does the formula use “n – 1” in the denominator?

A
The data is a sample and is expected to be more dispersed from the mean.
B
The data is a sample and is expected to be less dispersed from the mean.
C
The data is a population and is expected to be more dispersed from the mean.
D
The data is a population and is expected to be less dispersed from the mean.
20

A set of data has a high-value outlier. How do you expect the standard deviation to change when the outlier is removed? Would the result be different if the data had a low-value outlier instead? Explain.

Answer not available
21

Question text not available

Answer not available
26

Which of the following represents the numerator in the calculation of variance and standard deviation?

A
(225)2 + (–425)2 + (–275)2 + (325)2 + (75)2 + (–75)2 = 423,750
B
(650)2 + (–150)2 + (–600)2 + (250)2 + (150)2 + (–300)2 = 980,000
C
(250)2 + (–400)2 + (–250)2 + (350)2 + (100)2 + (–50)2 = 420,000
27

What is the variance?

Answer:

84000

28

What is the standard deviation, rounded to the nearest whole number?

Answer:

290

39

The z-score is the number of a data value is away from the .

Answers:
Part 1:standard deviations
Part 2:mean
40

Question text not available

Answer not available
43

Using the formula below, calculate the z-score for the listed data points. z-score: zx = x − μ σ z1 = z5 = z6.5 =

Answers:
Part 1:-1.95
Part 2:(5 - 4.9) / 2
Part 3:(6.5 - 4.9) / 2
44

Question text not available

Answer not available
45

Question text not available

Answer not available
67

Given that z [image 1] = –2 and z [image 2] = –1, which of the following do you know?

A
The variance is 10.
B
The standard deviation is 30.
C
The mean is 80.
D
The median is 40.
E
The data point x = 20 is 2 standard deviations from the mean.
F
The data point x = 50 is 1 standard deviation from the mean.
G
The data point x = 45 has a z-value of 1.5.
69

The data value x exists in two data sets: A and B. The mean is equal for both data sets. If the standard deviation for set A is greater than the standard deviation for set B, which is true for zx for set A?

Answer not available

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