Question
In: Statistics and Probability
Measures of Center and Spread 64 randomly selected students were asked the number of pairs of...
Measures of Center and Spread
64 randomly selected students were asked the number of pairs of shoes they have. Let X represent the number of pairs of shoes. The results are as follows:
| # of Pairs of Shoes | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
|---|---|---|---|---|---|---|---|---|
| Frequency | 11 | 6 | 6 | 9 | 9 | 8 | 9 | 6 |
Round all your answers to 4 decimal places where
possible.
The mean is: ____
The median is: ___
The sample standard deviation is: ____
The first quartile is: ___
The third quartile is: ____
What percent of the respondents have at least 9 pairs of Shoes?____
%
0% of all respondents have fewer than how many pairs of Shoes?
_____
(this is all i have)
Solutions
orchestra answered 1 year agoRelated Solutions
64 randomly selected students were asked the number of pairs of shoes they have. Let X...
64 randomly selected students were asked the number of pairs of
shoes they have. Let X represent the number of pairs of shoes. The
results are as follows:
# of Pairs of
Shoes
4
5
6
7
8
9
10
11
12
13
14
15
Frequency
4
4
3
7
2
5
10
5
5
8
6
5
Round all your answers to 4 decimal places where
possible.
The mean is:
The median is:
The sample standard deviation is:
The...
59 randomly selected students were asked the number of pairs of shoes they have. Let X...
59 randomly selected students were asked the number of pairs of
shoes they have. Let X represent the number of pairs of shoes. The
results are as follows:
Round all your answers to 4 decimal places where
possible.
The mean is:
The median is:
The sample standard deviation is:
The first quartile is:
The third quartile is:
What percent of the respondents have at least 12 pairs of Shoes?
%
53% of all respondents have fewer than how many pairs...
57 randomly selected students were asked the number of pairs of shoes they have. Let X...
57 randomly selected students were asked the number of pairs of
shoes they have. Let X represent the number of pairs of shoes. The
results are as follows:
# of Pairs of Shoes
4
5
6
7
8
9
10
11
Frequency
7
8
14
4
3
4
7
10
Round all your answers to 4 decimal places where
possible.
The mean is: __________________
The median is: __________________
The sample standard deviation is: __________________
The first quartile is: __________________
The...
Forty randomly selected students were asked the number of pairs of sneakers they owned. Let X...
Forty randomly selected students were asked the number of pairs
of sneakers they owned. Let X = the number of pairs of
sneakers owned. The results are as follows.
X
Frequency
1
3
2
3
3
7
4
13
5
13
6
1
Find: Sample Mean, Standard Deviation, Relative Frequency and
Cumulative Relative Frequency, First and Third Quartiles, What
percent of the students owned at least five pairs? (Round your
answer to one decimal place.), 40th Percentile and 90th
Percentile.
57 randomly selected students were asked the number of pairs of shoes they have. Let X...
57 randomly selected students were asked the number of pairs of
shoes they have. Let X represent the number of pairs of shoes. The
results are as follows:
# of Pairs of
Shoes
4
5
6
7
8
9
10
11
Frequency
7
9
7
5
9
3
8
9
Round all your answers to 4 decimal places where
possible.
The mean is:
The median is:
The sample standard deviation is: _______
The first quartile is: _______
The third quartile...
Randomly selected students in a statistics class were asked to report the number of hours they...
Randomly selected students in a statistics class were asked to
report the number of hours they slept on weeknights and on
weekends. At α = 0.05. Can it be claimed that the scores on 2 tests
are correlated on 0.01 significance level?
Student #: 1 2 3 4 5 6 7 8
Test 1: 67 88 76 88 91 95 79 71
Test 2: 69 78 76 84 86 96 70 68
27 randomly selected students were asked the number of movies they watched the previous week. The...
27 randomly selected students were asked the number of movies
they watched the previous week. The results are as follows: # of
Movies 0 1 2 3 4 5 6 Frequency 5 2 2 3 7 3 5 Round all your answers
to 4 decimal places where possible. The mean is: The median is: The
sample standard deviation is: The first quartile is: The third
quartile is: What percent of the respondents watched at least 6
movies the previous week?...
Fifteen randomly selected college students were asked to state the number of hours they slept the...
Fifteen randomly selected college students were asked to state
the number of hours they slept the previous night. The resulting
data are 5, 10, 7, 8, 6, 7, 7, 6, 6, 9, 4, 3, 8, 9, 7. Find the
following. (Round your answers to two decimal places.)
(a) Variance s2, using formula below $ s^2 = \dfrac{\sum{(x -
\overline{x})^2}}{n - 1}$ s2 =
(b) Variance s2, using formula $ s^2 = \dfrac{\sum{x^2} -
\dfrac{(\sum{x})^2}{n}}{n - 1} $ s2 =
(c)...
26 randomly selected students were asked the number of movies they watched the previous week. The...
26 randomly selected students were asked the number of movies
they watched the previous week. The results are as
follows:
# of Movies
0
1
2
3
4
5
Frequency
3
2
6
8
4
3
Round all your answers to one decimal place.
The mean is:
The median is:
The sample standard deviation is:
The first quartile is:
The third quartile is:
What percent of the respondents watched at least 4 movies the
previous week? ______%
74% of all...
22 randomly selected students were asked the number of movies they watched the previous week. The...
22 randomly selected students were asked the number of movies
they watched the previous week.
The results are as follows: # of Movies 0 1 2 3 4 5 6 Frequency
4 1 1 5 6 3 2
Round all your answers to 4 decimal places where possible.
The mean is:
The median is:
The sample standard deviation is:
The first quartile is:
The third quartile is:
What percent of the respondents watched at least 2 movies the
previous week?...
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