Question

make up there data sets (3 variables) with 5 Numbers each that
have:

c. The Same variance but different ranges.

Answer #1

Using R Programming:

Where sd = standard deviation,

Standard deviation = sqrt(Variance)

Variance = 4 then same variance and different range:

Where a, b and c are three variables.

statistics question
1. Create two sets of data, at least 5 numbers each. Explain
what the data represent. Find mean, median, variance and standard
deviation of each group. What is the best measure of center in the
two groups and why? Where is the variation in data bigger and
why?

Which two sets of four numbers have the same mean but different
standard deviation? 3,2,6,1 and 1,6,2,3
3,2,6,1 and 0,2,3,7
1,2,3,4 and 0,3,0,6
1,1,1,1 and 3,3,3,3

The three data sets presented below have the same MEAN and
RANGE. Assume that these data were obtained from samples.
Data Set A: 5, 7, 9, 11, 13, 15, 17.
Data Set B: 5, 6, 7, 11, 15, 16, 17.
Data Set C: 5, 5, 5, 11, 17, 17, 17.
What sample parameter will you use to differentiate among them?
Support your answer by computing the value of this parameter for
each of these sample data sets.

Consider these data sets:
I: 1, 3, 2, 2, 5, 4, 4, 3, 3
II: 1, 2, 4, 1, 2, 5, 2, 5, 1, 5, 5, 3
(a) Find the mean and median for each set. Show your work.
(b) Find variance and standard deviation for each set. Show your
work.
(c) Would you be surprised to hear someone claim that these data
were drawn from the same population? (Hint: Draw a histogram for
each set. Compare the shapes.)

suppose you have two different sets of data. although they both
have the same mean, their normal distribution or bell curve looks
completely different. why?

how
many sets with 3 numbers in each set can you get out of these
numbers. 6,3,0,1,2,8.

(c) Compute the sample correlation coefficient r for each of the
following data sets and show that r is the same for both. (Use 3
decimal places.) (i) x 6 5 9 y 2 1 5 (ii) x 2 1 5 y 6 5 9 r (i)
(ii)

(c) Compute the sample correlation coefficient r for
each of the following data sets and show that r is the
same for both. (Use 3 decimal places.)
(i)
x
5
2
9
y
1
2
5
(ii)
x
1
2
5
y
5
2
9
r
(i)
(ii)

5. These sets of quantum numbers are each supposed to specify an
orbital. One set, however, is erroneous. Which one and why?
a. n = 3; l = 0; ml = 0
b. n = 2; l = 1; ml = –1
c. n = 1; l = 0; ml = 0
d. n = 4; l = 1; ml = –2

For my Healthcare Statistics class....Consider two different
data sets and then for each data set, propose your idea of what
graph would best represent the key information. For each, be sure
to include the type of graph along with what would be shown on each
axis. The key data in the first data set is a list of all the
injuries that a clinic saw in a month. The other data set has key
data on the number of minutes...

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