Question 1

Which statistic is more resistant to outliers (or extreme data values)?
A) Mean
B) Median

Accepted Answer

Median is more resistant to outliers than mean because it is not affected by extreme values.

Question 2

Which statistic is more resistant to outliers (or extreme data values)?
A) Interquartile Range
B) Standard Deviation

Accepted Answer

The interquartile range (IQR) is more resistant to outliers because it only considers the middle 50% of the data, whereas the standard deviation is affected by all data points, including outliers.

Question 3

Use the following
February 12, 2009 marked the 200S1U1P1thS1S1P0 anniversary of Charles Darwin's birth. To celebrate, Gallup, a national polling organization, surveyed 1,018 Americans about their education level and their beliefs about the theory of evolution. The survey results are displayed in the provided two-way table.
 
-What proportion of respondents have a college degree? Round your answer to three decimal places.

Accepted Answer

0.224

Question 4

Use the following
February 12, 2009 marked the 200S1U1P1thS1S1P0 anniversary of Charles Darwin's birth. To celebrate, Gallup, a national polling organization, surveyed 1,018 Americans about their education level and their beliefs about the theory of evolution. The survey results are displayed in the provided two-way table.
 
-What proportion of respondents have no opinion on the theory of evolution? Round your answer to two decimal places.

Accepted Answer

The answer of Use the following
February 12, 2009 marked the...

Question 5

Use the following
February 12, 2009 marked the 200S1U1P1thS1S1P0 anniversary of Charles Darwin's birth. To celebrate, Gallup, a national polling organization, surveyed 1,018 Americans about their education level and their beliefs about the theory of evolution. The survey results are displayed in the provided two-way table.
 
-What proportion of non-believers have a high school education or less? Use four decimal places in your answer.

Accepted Answer

The answer of Use the following
February 12, 2009 marked the...

Question 6

Use the following
February 12, 2009 marked the 200S1U1P1thS1S1P0 anniversary of Charles Darwin's birth. To celebrate, Gallup, a national polling organization, surveyed 1,018 Americans about their education level and their beliefs about the theory of evolution. The survey results are displayed in the provided two-way table.
 
-What proportion of college graduates believe in the theory of evolution? Use four decimal places in your answer.

Accepted Answer

The answer of Use the following
February 12, 2009 marked the...

Question 7

Use the following
February 12, 2009 marked the 200S1U1P1thS1S1P0 anniversary of Charles Darwin's birth. To celebrate, Gallup, a national polling organization, surveyed 1,018 Americans about their education level and their beliefs about the theory of evolution. The survey results are displayed in the provided two-way table.
 
-Find the proportion of respondents who believe in evolution for each education level (round each to three decimal places). Does there seem to be an association between education level and belief in evolution? If so, in what direction?

Accepted Answer

The answer of Use the following
February 12, 2009 marked the...

Question 8

Use the following
February 12, 2009 marked the 200S1U1P1thS1S1P0 anniversary of Charles Darwin's birth. To celebrate, Gallup, a national polling organization, surveyed 1,018 Americans about their education level and their beliefs about the theory of evolution. The survey results are displayed in the provided two-way table.
 
-The survey results are displayed in the segmented bar chart. Does there appear to be an association between education level and belief in the theory of evolution? If so, what does it mean about these two variables?

Accepted Answer

The answer of Use the following
February 12, 2009 marked the...

Question 9

Use the following
A Fun-Size bag of M&M's contains 5 green, 3 red, 3 yellow, 4 orange, 4 blue, and 2 brown candies.
-What proportion of the M&M's are green? Use four decimal places in your answer.

Accepted Answer

The answer of Use the following
A Fun-Size bag of M&M's...

Question 10

Use the following
A Fun-Size bag of M&M's contains 5 green, 3 red, 3 yellow, 4 orange, 4 blue, and 2 brown candies.
-What proportion of the candies are yellow or orange? Use four decimal places in your answer.

Accepted Answer

The answer of Use the following
A Fun-Size bag of M&M's...

Question 11

Use the following
A Fun-Size bag of M&M's contains 5 green, 3 red, 3 yellow, 4 orange, 4 blue, and 2 brown candies.
-Sketch a bar chart of the data.

Accepted Answer

The answer of Use the following
A Fun-Size bag of M&M's...

Question 12

Use the following
A Fun-Size bag of M&M's contains 5 green, 3 red, 3 yellow, 4 orange, 4 blue, and 2 brown candies.
-Construct a relative frequency table of the results. Use two decimal places in your relative frequencies.

Accepted Answer

The answer of Use the following
A Fun-Size bag of M&M's...

Question 13

Use the following
In a survey conducted by the Gallup organization September 6-9, 2012, 1,017 adults were asked "In general, how much trust and confidence do you have in the mass media - such as newspapers, TV, and radio - when it comes to reporting the news fully, accurately, and fairly?"
81 said that they had a "great deal"
of confidence, 325 said they had a "fair amount"
of confidence, 397 said they had "not very much"
confidence, and 214 said they had "no confidence at all".
-Display the results in a frequency table.

Accepted Answer