Use the image to answer the question.
A histogram is titled Exam 1 Scores.
Given is the histogram of Exam 1 scores from Ms. Mala’s Algebra 1 class. Which option correctly describes the shape of Ms. Mala’s Exam 1 scores?
(1 point)
Responses
symmetric
symmetric
skewed right
skewed right
skewed left
skewed left
Given that men’s height data are symmetric, which graph can possibly be a representation of men's height?(1 point)
Responses
On a histogram, the x-axis is labeled Height in inches and ranges from 40 to 80 in increments of 5. The y-axis is labeled Frequency and ranges from 0 to 50 in increments of 10.
Image with alt text: On a histogram, the x-axis is labeled Height in inches and ranges from 40 to 80 in increments of 5. The y-axis is labeled Frequency and ranges from 0 to 50 in increments of 10.
On a histogram, the x-axis is labeled Height in inches and ranges from 40 to 80 in increments of 5. The y-axis is labeled Frequency and ranges from 0 to 50 in increments of 10.
Image with alt text: On a histogram, the x-axis is labeled Height in inches and ranges from 40 to 80 in increments of 5. The y-axis is labeled Frequency and ranges from 0 to 50 in increments of 10.
On a histogram, the x-axis is labeled Height in inches and ranges from 40 to 80 in increments of 5. The y-axis is labeled Frequency and ranges from 0 to 50 in increments of 10.
Image with alt text: On a histogram, the x-axis is labeled Height in inches and ranges from 40 to 80 in increments of 5. The y-axis is labeled Frequency and ranges from 0 to 50 in increments of 10.
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On a histogram, the x-axis is labeled Height in inches and ranges from 40 to 80 in increments of 5. The y-axis is labeled Frequency and ranges from 0 to 50 in increments of 10.
Question
A data set has mean μ
and standard deviation σ
. Which statement is correct?(1 point)
Responses
A value chosen randomly from the data set will typically be contained in the interval [−μσ,μσ]
.
A value chosen randomly from the data set will typically be contained in the interval .
A value chosen randomly from the data set will typically be contained in the interval [μ−σ,μ+σ]
.
A value chosen randomly from the data set will typically be contained in the interval .
A value chosen randomly from the data set will typically be contained in the interval [μ,μ+σ]
.
A value chosen randomly from the data set will typically be contained in the interval .
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A value chosen randomly from the data set will typically be contained in the interval [μ−σ,μ+σ].
Question
Find the mean and standard deviation for the following data set. Round to the nearest tenth.
11, 14, 15, 15, 16, 16, 17, 18, 19, 23
Use the mean and standard deviation to select the correct statement.
(1 point)
Responses
16.4 is a typical value for the data set. 3.0 is the typical distance between any pair of values in the data set.
16.4 is a typical value for the data set. 3.0 is the typical distance between any pair of values in the data set.
16.4 is a typical value for the data set. 3.0 is the typical distance that a value in the data set is from 16.4.
16.4 is a typical value for the data set. 3.0 is the typical distance that a value in the data set is from 16.4.
16.6 is a typical value for the data set. 3.7 is the typical distance that a value in the data set is from 16.6.
16.6 is a typical value for the data set. 3.7 is the typical distance that a value in the data set is from 16.6.
16.6 is a typical value for the data set. 3.7 is the typical distance between any pair of values in the data set.
16.6 is a typical value for the data set. 3.7 is the typical distance between any pair of values in the data set.
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16.4 is a typical value for the data set. 3.0 is the typical distance that a value in the data set is from 16.4.
5 of 165 of 16 Items
Question
Use the image to answer the question.
A histogram is shown. From left to right, the horizontal axis has numbers from 2 to 38 in increments of 4. The vertical axis is labeled Frequency. From bottom to top, the vertical axis has numbers from 3 to 30 in increments of 3.
Which number is the best estimate of the standard deviation for the distribution shown?
(1 point)
Responses
4
4
8
8
16
16
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8
6 of 166 of 16 Items
Question
Use the image to answer the question.
A solid distribution curve A, a dotted distribution curve B, and a dashed dotted distribution curve C are plotted on the first quadrant of a coordinate plane. All three curves are normal distribution curves.
Which statement about the curves is true?
(1 point)
Responses
Curve C has the lowest standard deviation.
Curve C has the lowest standard deviation.
Curve A has the lowest mode.
Curve A has the lowest mode.
Curve C has the lowest mode.
Curve C has the lowest mode.
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