Question

**Question 1: (Marks: 2)**

Given the sample data set 6, 6, 6, 12, 18, 18, 18

- Calculate the mean.

- Calculate the median.

- Calculate the sample standard deviation.

Answer #1

Solution :

Solution :

n = 7

(a)

= = 84 / 7 = 12

(b)

Median is the middle most observations in the data when observations are arranged in

increasing or decreasing order of their values.

Median = 12

(c)

s = (x
- )^{2} / n - 1 =
216 / 6 = 36 / 6 = 6

Question 3 (5.5 marks = 1.5 + 1 + 2 + 1) The set of data below
are from a sample of n = 7 7, -6, -3, 1, 9, 4, 7 a. Calculate the
mean, median, and mode b. Calculate the range and range c.
Calculate the variance and standard deviation d. Do your calculated
values of the mean, median, and mode suggest that this distribution
is symmetrical, negatively skewed or positively skewed? Please
explain your answer in one...

Using the data set below, please calculate the:
3, 7, 8, 12, 14, 21, 15, 18, 14
1- The median
2- The mean
3- The sample standard deviation
4- Calculate outliers (if there is any)
5- Construct a boxplot for given data set

Given below is a
sample of data:
1
6
2
22
10
3
4
7
5 2
Calculate the Median
of the data . Round to 2 decimal places.
Calculate the Mean of
the data . Round to 2 decimal places.
Is the data skewed or
symmetric? Enter K for skewed or
Y for symmetric.
Would it be more
appropriate to use the mean or the median for this data set? Enter
N for the mean or D for...

Consider the following sample data values.
18 13 2 4 9 6 5 1 12
find sample variance and sample standard deviation

QUESTION 1
·
1 POINT
The following frequency table summarizes a set of data. What is
the five-number summary?
Value
Frequency
2
3
3
2
5
1
6
3
7
1
8
2
11
3
Select the correct answer below:
Min
Q1
Median
Q3
Max
2
7
9
10
11
Min
Q1
Median
Q3
Max
2
3
6
8
11
Min
Q1
Median
Q3
Max
2
3
4
8
11
Min
Q1
Median
Q3
Max
2
6
8
10
11...

Data Set: 6 8 10 13 15 18 20 21 27 29 30 35 45 49 52 54 57 58
Define: mean and median.
1. mean 30.4, median 28
2. mean 28.4 , median 28
3. mean 31.4 , median 29
4. mean 30.4 , median 29
5. None of these answers
QUESTION 2
Sample: 45 71 34 88 46
For the given set of numbers, find the mean and the standard
deviation.
1.
mean: 56.8, deviation: 19.75
2.
mean:...

Given the data set A = {5, 4, 6, 14, 2, 2, 11, 4, 5, 8, 3, 1,
12, 15, 13}, which is the data of a sample taken from a larger
population. Please Solve NOT Using Excel
Calculate the mean deviation Show all work! (5
pts)
Mean= 7
MD= (|5-7|+ |4-7|+
|6-7|+|14-7|+|2-7|+|2-7|+|11-7|+| 4-7|+ |5-7|+| 8-7|+|
3-7|+|1-7|+|12-7|+ |15-7|+| 137|)/7
Mean deviation = 4.13
Calculate the variance Show all work! (5
pts)
Calculate the standard deviation Show all
work! (5...

Data Set A: 11, 12, 13
Data Set B: 9, 10, 11, 12, 13, 14, 15
Data Set C: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18
Find the mean, sample standard deviation–treating the data as a
sample, and the population standard deviation–treating the data as
a population.

he following set of data is from a sample of
n equals =6.
7
4
2
7
1
13
a. Compute the mean, median, and mode.
b. Compute the range, variance, standard deviation, and
coefficient of variation.
c. Compute the Z scores. Are there any outliers?
d. Describe the shape of the data set.

Given the following sample data:
8 9 10 12 8 9 13 9 10 12
1) Find the: [2, 2, 1 points]
a. Mean x
b. Median
c. Mode
2) Find the variance s2and standard deviation s [4
points]
3) What percent of this sample data is between x − 2s
and x + 2s? [1 point]

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 16 minutes ago

asked 18 minutes ago

asked 21 minutes ago

asked 25 minutes ago

asked 37 minutes ago

asked 46 minutes ago

asked 53 minutes ago

asked 57 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago