Question

24 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 |
3 | 6 | 0 | 4 | 4 | 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 5 movies the
previous week? %

38% of all respondents watched fewer than how many movies the
previous week?

Answer #1

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
Frequency
2
3
4
3
4
6
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? %
23% of all...

Twenty-five randomly selected students were asked the number of
movies they watched the previous week. The results are as
follows.
# of movies
Frequency
0
5
1
10
2
6
3
3
4
1
(a) Find the sample mean x. (Enter your answer to two
decimal places.)
x=
(b) Find the approximate sample standard deviation, s.
(Round your answer to two decimal places.)
s =

55 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:
# of Siblings
0
1
2
3
4
5
Frequency
10
6
14
8
6
11
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...

60 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
Frequency
3
6
9
6
5
5
6
6
6
8
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...

67 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
Frequency
4
3
5
7
5
4
6
6
8
7
12
Round all your answers to 4 decimal places where
possible.
The mean is:
The median is:
The sample standard deviation is:
The first quartile...

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
9
9
5
5
6
8
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...

69 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
Frequency
6
6
6
10
5
6
8
7
5
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...

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.
93.33% of all respondents have had at most how many
siblings?

The Acme Company manufactures widgets. The distribution of
widget weights is bell-shaped. The widget weights have a mean of 57
ounces and a standard deviation of 6 ounces.
a) 95% of the widget weights lie between and
b) What percentage of the widget weights lie between 39 and 69
ounces? %
c) What percentage of the widget weights lie below 63
? %
57 randomly selected students were asked how many siblings were
in their family. Let X represent the number of pairs...

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
Relative
Frequency
Cumulative Relative
Frequency
1
2
2
4
3
7
4
13
5
13
6
1
Find the sample standard deviation, s. (Round your
answer to two decimal places.)

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