Most American households have one digital video recorder (DVR), and many have more than one. A sample of 25 households produced the following measurements of x, the number of DVRS in the household. 10311 10310 133 3 1|121 2 3 2 121 (a) Is the distribution of x, the number of DVRS in a household, symmetric or skewed? Explain. O The distribution is expected to be symmetric since we expect roughly equal proportions of households to lie on the left and right of the peak of the distribution. O The distribution is expected to be skewed right since we expect a greater proportion of households to lie to the left of the peak of the distribution than to the right of the peak. O The distribution is expected to be skewed left since we expect a greater proportion of households to lie to the left of the peak of the distribution than to the right of the peak. O The distribution is expected to be skewed left since we expect a greater proportion of households to lie to the right of the peak of the distribution than to the left of the peak. O The distribution is expected to be skewed right since we expect a greater proportion of households to lie to the right of the peak of the distribution than to the left of the peak. (b) Guess the value of the mode, the value of x that occurs most frequently. (c) Calculate the mean, median, and mode for these measurements. mean median mode (d) Draw a relative frequency histogram for the data set. Household DVRS Household DVRS Household DVRS Household DVRS 0.60 0.55 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.60 0.55 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.60 0.55 0.50 0.45 0.40 E 0.35 0.30 0.25 0.20 * 0.15 0.60 0.55 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15

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Most American households have one digital video recorder (DVR), and many have more than one. A sample of 25 households produced the following measurements of x, the number of DVRS in the household.
10 31
1
1|03 1
13 3
3
1
1
2
1
2
3 2
1|2 |1
(a) Is the distribution of x, the number of DVRS in a household, symmetric or skewed? Explain.
O The distribution is expected to be symmetric since we expect roughly equal proportions of households to lie on the left and right of the peak of the distribution.
O The distribution is expected to be skewed right since we expect a greater proportion of households to lie to the left of the peak of the distribution than to the right of the peak.
O The distribution is expected to be skewed left since we expect a greater proportion of households to lie to the left of the peak of the distribution than to the right of the peak.
O The distribution is expected to be skewed left since we expect a greater proportion of households to lie to the right of the peak of the distribution than to the left of the peak.
O The distribution is expected to be skewed right since we expect a greater proportion of households to lie to the right of the peak of the distribution than to the left of the peak.
(b) Guess the value of the mode, the value of x that occurs most frequently.
(c) Calculate the mean, median, and mode for these measurements.
mean
median
mode
(d) Draw a relative frequency histogram for the data set.
Household DVRS
Household DVRS
Household DVRS
Household DVRS
0.60
0.55
0.50
0.45
* 0.40
E 0.35
0.60
0.55
0.50-
0.45
0.40
0.35
0.30
0.25
0.20-
0.15
0.10
0.60
0.55
0.50
0.45
0.40
E0.35
0.30
E 0.25
0.20
0.60
0.55
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
* 0.10
030
0.25
0.20
E 0.15
* 0.10
a
0.15
R H
0.10
Relative Frequency
Transcribed Image Text:Most American households have one digital video recorder (DVR), and many have more than one. A sample of 25 households produced the following measurements of x, the number of DVRS in the household. 10 31 1 1|03 1 13 3 3 1 1 2 1 2 3 2 1|2 |1 (a) Is the distribution of x, the number of DVRS in a household, symmetric or skewed? Explain. O The distribution is expected to be symmetric since we expect roughly equal proportions of households to lie on the left and right of the peak of the distribution. O The distribution is expected to be skewed right since we expect a greater proportion of households to lie to the left of the peak of the distribution than to the right of the peak. O The distribution is expected to be skewed left since we expect a greater proportion of households to lie to the left of the peak of the distribution than to the right of the peak. O The distribution is expected to be skewed left since we expect a greater proportion of households to lie to the right of the peak of the distribution than to the left of the peak. O The distribution is expected to be skewed right since we expect a greater proportion of households to lie to the right of the peak of the distribution than to the left of the peak. (b) Guess the value of the mode, the value of x that occurs most frequently. (c) Calculate the mean, median, and mode for these measurements. mean median mode (d) Draw a relative frequency histogram for the data set. Household DVRS Household DVRS Household DVRS Household DVRS 0.60 0.55 0.50 0.45 * 0.40 E 0.35 0.60 0.55 0.50- 0.45 0.40 0.35 0.30 0.25 0.20- 0.15 0.10 0.60 0.55 0.50 0.45 0.40 E0.35 0.30 E 0.25 0.20 0.60 0.55 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 * 0.10 030 0.25 0.20 E 0.15 * 0.10 a 0.15 R H 0.10 Relative Frequency
(c) Calculate the mean, median, and mode for these measurements.
mean
median
mode
(d) Draw a relative frequency histogram for the data set.
Household DVRS
Household DVRS
Household DVRS
Household DVRS
0.60
E 0.55
0.50
045
0.60
0.55
0.50
0.60
0.55
0.50
0.45
0.40
0.35
0.30
0.25
0.20
a 0.15
2 0.10
0.05
0.60
0.55
0.50
0.45
0.40
A 0.35
0.30
0.25
0.20
a 0.15
2 0.10
0.05
0.45
0.40
* 0.40
E 0.35
0.30
0.35
0.30
025
0.25
0.20
0.25
E 0.20
2 0.15
0.10-
0.05
0.15
0.10
0.05
2
3
1
2
3
1
2
3
1
2 3
DVRS
DVRS
DVRS
DVRS
Locate the mean, median, and mode along the horizontal axis. Are your answers to parts (a) and (b) correct?
This answer has not been graded yet.
Kauanba aanejay
Frequency
Relative Frequency
Transcribed Image Text:(c) Calculate the mean, median, and mode for these measurements. mean median mode (d) Draw a relative frequency histogram for the data set. Household DVRS Household DVRS Household DVRS Household DVRS 0.60 E 0.55 0.50 045 0.60 0.55 0.50 0.60 0.55 0.50 0.45 0.40 0.35 0.30 0.25 0.20 a 0.15 2 0.10 0.05 0.60 0.55 0.50 0.45 0.40 A 0.35 0.30 0.25 0.20 a 0.15 2 0.10 0.05 0.45 0.40 * 0.40 E 0.35 0.30 0.35 0.30 025 0.25 0.20 0.25 E 0.20 2 0.15 0.10- 0.05 0.15 0.10 0.05 2 3 1 2 3 1 2 3 1 2 3 DVRS DVRS DVRS DVRS Locate the mean, median, and mode along the horizontal axis. Are your answers to parts (a) and (b) correct? This answer has not been graded yet. Kauanba aanejay Frequency Relative Frequency
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