Of the math teachers, what percentage had 5 or more years of experience
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Question 2
2.
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Question 3
3.
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Question 4
4.
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Question 5
5.
In order, how should the numbers read in the missing column going from top to bottom?
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Question 6
6.
Given these box plot distributions of daily high temperatures in two cities which statement is the most true?
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Question 7
7.
given these displays which is the most true?
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Question 8
8.
Which statement is true based on these box plot distributions of macaws?
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Question 9
9.
Which are appropriate descriptions for the dot plot?
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Question 10
10.
What is the most appropriate description of the shape of the distribution?
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Question 11
11.
What is the most appropriate description of the shape of the distribution?
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Question 12
12.
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Question 13
13.
What is the median of the following numbers?
6, 10, 10, 10, 5, 9, 3
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Question 14
14.
The following data points represent the volume of gas in each race car driver's tank (in liters).
4, 5, 13, ?
If the mean of the data set is 7L, find the missing volume of gas.
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Question 15
15.
A dog gave birth to 4 puppies. Three of the puppies had different masses between 145 and 157g, and one puppy had a mass of 59g.
The puppy that had a mass of 59g was then adopted, so that puppy was removed from the data set.
How will the removal of the puppy affect the mean and median?
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Question 16
16.
Find the mean of the data in the dot plot below.
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Question 17
17.
The following data points represent the number of animal crackers in each kid's lunch box.
4, 4, 6, 7, 10, 11, 12, 14, 15
Find the interquartile range (IQR) of the data set.
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Question 18
18.
What is the method used by both the textbook and Khan Academy to calculate if an element of a data set is an outlier?
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Question 19
19.
Find the interquartile range (IQR) of the data in the box plot below.
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Question 20
20.
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Question 21
21.
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Question 22
22.
Consider the density curve below.
Which of the following statements are true?
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Question 23
23.
A group of Americans participated in a study that involved taking their temperatures during exercise is moderate heat. The participants had a mean body temperature of 104 degrees F and a standard deviation of 2 degrees F.
Doctors analyzing the results prefer to work in degrees Celsius, so they convert the data by applying the formula below to each data point:
If each temperature is converted to degrees Celsius, what will be the mean and standard deviation of the distribution of new temperatures?
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Question 24
24.
The grades on a language midterm at Loyola are roughly symmetric with μ = 69, and σ = 4.0
Vanessa scored 61 on the exam.
Find the z-score for Vanessa's exam grade.
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Question 25
25.
The Appalachian trail is a continuous hiking trail that passes through 14 states in the US. The histogram shows the length of the trail through each state.
What interval contains the 50th percentile for this data?
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Question 26
26.
The lifespans of lizards in a particular zoo are normally distributed. The average lizard lives 3.1 years; the standard deviation is 0.6 years.
Use the empirical rule (68-95-99.7%) to estimate the probability of a lizard living less than 2.5 years.
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Question 27
27.
An international cake competition attracted 50 bakers from around the world. The graph shown below displays the relationship between the amount of sugar in the cakes (in grams per 100 grams of cake) and the scores the cakes received.
Which statement is the best description of the association between these variables?
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Question 28
28.
The graph shown below shows the relationship between the age of drivers and the number of car accidents per 100 drivers in the year 2009.
What is the best description of this relationship?
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Question 29
29.
Which line fits the data graphed below?
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Question 30
30.
Julio distributed a survey to his fellow students asking them how many hours they spent playing sports in the past day. He also asked them to rate their mood on a scale from 0 to 10, with 10 being the happiest. Julio created the following scatterplot and regression line to show this relationship.
The fitted line has a y-intercept of 5.
What is the best interpretation of this y-intercept?