Question

(a) Find the mean, median, mode and standard deviation of the following set of ungrouped sample data:

4, 2, 3, 5, 3, 1, 6, 4, 2, 3

(b) What proportion of the measurements lies within 1 standard deviation of the mean? Within 2 standard deviations of the mean? Within 3 standard deviations?

(c) Based on your answers to part (b), would you conjecture that the histogram is approximately bell shaped? Explain.

Answer #1

a. find the mean and standard deviation of the following set of
ungrouped sample data: 4, 3, 5, 2, 3, 1, 2, 5, 3, 1, 5, 4, 6, 4, 5,
1, 3, 3, 7, 8, 7, 5, 4, 3, 7, 8, 4, 6, 9, 10, 10, 9, 6, 4, 6.
b. What proportion of the measurements lies within one standard
deviation of the mean? Within two standard deviations of the mean?
Within three standard deviations?
c. Based on part (b),...

Consider the following set of ungrouped sample data. Answer
parts A through D.
5 4 4 4 0 2 3 7 7 8
(A) Find the mean and standard deviation of the ungrouped
sample data.
x=
(B) What proportion of the measurements lies within 1 standard
deviation of the mean? Within 2 standard deviations? Within 3
standard deviations?
(C) Based on your answers to part (B), would you conjecture
that the histogram is approximately bell shaped? Explain.
(D) To confirm your conjecture, construct a histogram with the
class interval...

Find the mean, median, mode, range, and standard deviation for
this data set. When
applicable state whether the data set is: unimodal, bimodal,
or multimodal. Round your
answers to one or more decimal place than the largest number
of decimal places given in
the data. The data set is a sample.
$11.40, $32.00, $22.50, $12.01, $10.08, $18.30, $18.40,
$32.00

For the following Data determine the Mean, Standard Deviation,
mode, median and coefficient of variation as well as developing a
histogram:
29, 30, 25, 27, 28, 25, 27, 27, 27,
30, 28, 29, 27, 30, 28, 26, 29, 25, 26, 29
(report answers in form xx.xx)

Define the following terms, in your own words: Mean, Median,
Mode, Range, and Standard deviation.
2. Create and post an example that has a data set of 15 to 25
numbers, similar to the example in the Introduction above. Do not
find the mean, median, mode, range and standard deviation of your
data set.

#2. Find the mean, median, and mode for the following sample of
scores:
3, 6, 7, 3, 9, 8, 3, 7, 5
Mean=
Median=
Mode=
#4. Find the mean, median, and mode for the scores in the
following frequency distribution table:
X
F
8
1
7
1
6
2
5
5
4
2
3
2
Mean=
Median=
Mode=
#6. A population of N = 15 scores has SX= 120. What is the
population mean?
#10 One sample has a...

A data set has a mean of 135, a median of 137, and a standard
deviation of 13. Marrion concludes that 99.7% of the data in the
set must have values between 96 and 174.
What flaw, if any, is there in Marrion’s reasoning? Pick only
one.
A. Marrion should have calculated three standard deviations from
the median instead of calculating three standard deviations from
the mean.
B. There is no flaw in Marrion’s reasoning. He calculated three
standard deviations...

Which of the following is not a measure of location?
mean
median
mode
standard deviation

2. Given the following data, calculate the mean, median, mode,
midrange, standard deviation, and variance.
14.35, 17.22, 18.90, 20.02, 34.43, 12.85, 18.49, 7.62, 19.93
(a) Mean
(b) Median
(c) Mode
(d) Range
(e) Standard Deviation
(f) Variance

2. In a given sample data below, find the mean, median, mode,
and standard deviation.22, 30, 26, 39, 40, 33, 26, 36.

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