Question
In: Statistics and Probability
54 randomly selected students were asked how many siblings were in their family. Let X -...
54 randomly selected students were asked how many siblings were in their family. Let X - the number of pairs of siblings in the student's family.
| # of Siblings | 0 | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|---|
| Frequency | 5 | 9 | 10 | 13 | 10 | 7 |
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 have at least 1 siblings?
_____%
88% of all respondents have fewer than how many siblings?
Solutions
orchestra answered 1 year agoRelated Solutions
60 randomly selected students were asked how many siblings were in their family. Let X =...
60 randomly selected students were asked how many siblings were
in their family. Let X = the number of pairs of siblings in the
student's family. The results are as follows:
Siblings
Frequency
1
13
2
22
3
15
4
6
5
3
6
0
7
1
Round your answers to two decimal places.
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 had...
52 randomly selected students were asked how many siblings were in their family. Let X represent...
52 randomly selected students were asked how many siblings were
in their family. Let X represent the number of pairs of siblings in
the student's family. The results are as follows:
# of Siblings
0
1
2
3
4
5
6
Frequency
10
11
7
4
5
10
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...
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...
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...
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...
A sample of 20 Ohio University students were randomly selected and asked, “How many phone calls...
A sample of 20 Ohio University students were randomly selected
and asked, “How many phone calls did you receive last night?” The
numbers below are their responses.
1 2 0 2 4 2 3 4 5 3
0 4 5 6 3 10 7 6 7 11
Compute the IQR of the distribution.
Answers:
a. 6
b. 3
c. 4
d. 2
A sample of 20 Ohio University students were randomly selected and asked, “How many phone calls...
A sample of 20 Ohio University students were randomly selected
and asked, “How many phone calls did you receive last night?” The
numbers below are their responses.
1 2 0 2 4 2 3 4 0
5 3 4 5 6 3 10 7 6 7 11
Compute the standard deviation of the
distribution.
Answers:
a. 6.4
b. 2.51
c. 3.16
d. 2.97
Brothers and sisters: Thirty students in a first-grade class were asked how many siblings they have....
Brothers and sisters: Thirty students in a
first-grade class were asked how many siblings they have. Following
are the results.
1
1
2
1
2
3
7
1
1
5
1
1
3
0
1
1
1
2
5
0
0
1
2
2
4
2
2
3
3
4
a.
Construct a frequency histogram.
b.
Construct a relative frequency histogram.
c.
Are the histograms skewed to the left, skewed to the right, or
approximately symmetric?
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