Question

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 4 5 6 0 3 10 7 6 7 11

**Compute the median of the distribution.**

**a. 4**

**b. 5**

**c. 3**

**d. 7**

Answer #1

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 4 5 6 0 3 10 7 6 7 11

**Compute the median of the distribution.**

Answer : **a. 4**

## first arrange all the observation in ascending order :

x = ( 0 , 0 , 1 , 2, 2, 2, 3, 3, 3, 4, 4, 4 , 5, 5, 6, 6, 7, 7, 10, 11 )

**here n is even : n**

**median = [( n /2 ) th + (n/2 +1 ) th] /2 th
observation**

= [ 10 +11 ] /2

= 10.5 th observation

= ( 4+4 ) /2

**= 4**

what Is the standard deviation for
0,0,1,2,2,2,3,3,3,4,4,4,5,5,6,6,7,7,10,11
a sample of 20 students were randomly selected and 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.

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# 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...

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and surveyed at a small central Ohio university. They were asked
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Did you have a driving accident?
Yes
No
Total
Intoxicated
16
8
24
Sober
3
173
176
Total
19
181
200
1. What is the
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60 randomly selected students were asked how many siblings were
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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
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24 randomly selected students were asked the number of movies
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# of
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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
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38%...

67 randomly selected students were asked the number of pairs of
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# 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...

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
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60 randomly selected students were asked the number of pairs of
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# 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...

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# 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
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# of Pairs of
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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
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The mean is:
The median is:
The sample standard deviation is:
The first quartile is:
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