Which of the following is an example of a Macrobotanical remain?
Macrobotanical remains can be seen by the naked eye or low power microscope. Examples of these include seeds and charcoal. Microbotanical remains are so small that in order to view them, you need to use a high-power microscope. These include pollen, starch grain, and phytoliths.
When sites associated with this type of society are ranked according to size and displayed on a histogram?
hunter-gatherer groups. When sites associated with this type of society are ranked according to size and displayed on a histogram there will only be a narrow range of variation in site size and all the sites will be quite small.
When artifacts or features are described as in situ archaeologists mean that they are left?
Transects. When artifacts or features are described as in situ, archaeologists mean they are left. In a place, where they were originally used or discared.
How do archaeologists attempt to recognize the existence of ranking in the archaeological record?
Archaeologists attempt to recognize the existence of ranking by looking at burial patterns. The way a person was buried, along with what they were buried with, is a good indication of how that person’s ranking in life.
Which of the following is not true about histogram?
As such, it does not represent categorical data. The bars of a histogram should be equal width to accurately display the data. Histograms may be skewed or symmetrical depending on the data. If one particular bar has no data in it, there may be gaps in the histogram.
How does the stem and leaf plot show the distribution of these data quizlet?
How does the stem-and-leaf plot show the distribution of these data? The lengths of the rows are similar to the heights of bars in a histogram; longer rows of data correspond to higher frequencies. Compare the pie chart found above to the Pareto chart given on the left.
What is the difference between a stem and leaf plot and a histogram?
A stem and leaf plot is a way to plot data where the data is split into stems (the largest digit) and leaves (the smallest digits). While a histogram uses bars to represent amounts, the leaves of the stemplot represent amounts. A very long leaf means that “stem” has a large amount of data.
What is the advantage of a stem and leaf plot?
Advantages of Stem and Leaf Plots It can be used to quickly organize a large list of data values. It is convenient to use in determining median or mode of a data set quickly. Outliers, data clusters, or gaps are easily visible.
What is an advantage of using a stem and leaf plot rather than a histogram?
What is an advantage of using a stem-and-leaf plot instead of a histogram? Stem-and-leaf plots contain original data values where histograms do not. Histograms easily organize data of all sizes where stem-and-leaf plots do not.
What advantage does a stem and leaf plot have that a list of values does not have?
One advantage to the stem-and-leaf plot over the histogram is that the stem-and-leaf plot displays not only the frequency for each interval, but also displays all of the individual values within that interval.
What percent of students had an IQ of at least 130?
approximately 6%
What percent of students has an IQ of at least 120?
IQ test scores explained: Average, superior and low
| IQ | Description | % of Population |
|---|---|---|
| 130+ | Very superior | 2.2% |
| 120–129 | Superior | 6.7% |
| 110–119 | High average | 16.1% |
| 90–109 | Average | 50% |
Did any students have an IQ of 161?
A 13-year-old pupil from Essex has recorded an IQ score of 161. Michael Doran is one of several pupils from a school in Canvey Island who have scored highly in a Mensa Genius Test.
What class limit is the smallest value?
lower class limit
How do you find the upper class limit on a histogram?
To obtain the other upper class limits, you repeatedly add the class width to the first upper class limit until – including the first upper class limit – you have one upper class limit for each class. 8. For each class, count the number of data values in the class. This is the class frequency.
How do you get CF?
Cystic fibrosis is a genetic disease. People with CF have inherited two copies of the defective CF gene — one copy from each parent. Both parents must have at least one copy of the defective gene. People with only one copy of the defective CF gene are called carriers, but they do not have the disease.
How do you find the class frequency?
Count the tally marks to determine the frequency of each class. The relative frequency of a data class is the percentage of data elements in that class. The relative frequency can be calculated using the formula fi=fn f i = f n , where f is the absolute frequency and n is the sum of all frequencies.
What advantage does a stem plot have over a histogram?
The stem and leaf plot essentially provides the same information as a histogram, with the following added benefits: The plot can be constructed quickly using pencil and paper. The values of each individual data point can be recovered from the plot.
How do you know if a stem and leaf plot is skewed?
Skewed: As with the horizontal skewing of a histogram, stem plots with a obvious skew toward one end or the other tend to indicate an increased number of outliers either lesser than the mode (skewed down – correlating to a left-skew in a histogram) or greater than the mode (skewed up – correlating to a right-skewed …
What would be the leaf unit in a stem and leaf display?
For each row, the number in the “stem” (the middle column) represents the first digit (or digits) of the sample values. The “leaf unit” at the top of the plot indicates which decimal place the leaf values represent.
What is a stretched stem and leaf display?
Stretched Stem-and-Leaf Display Whenever a stem value is stated twice, the first value corresponds to leaf values of 0 – 4 , and the second value corresponds to leaf values of 5 – 9 . Leaf units may be 100, 10, 1, 0.1 , and so on.