1.Mean and median are used as the primary measurement. Mode is seen in the first table and table 3

Appropriate measure of central tendency? Absolutely, the mean is clearly stated and many variations are introduced. Comparisons between years are used to show increases or decreases within the infant mortality rate.

2. How were measures of variation used in the study? Amongst the data collected several variations were introduced. These variations within cultures including Whites, Blacks, American Indians and so on. These variations allow us to view which, if any particular culture is experiencing a higher infant mortality rate. Which, in this case shows that blacks and non Hispanic blacks were experiencing a much higher rate of infant deaths in 2001 and 2002 respectively.

A second variation introduced on table 2 shows that multiple births are more likely to experience an infant death in contrast to a single child birth. In table 3 cause of death is used to make the determination. It appears that it is dependent on birth weight above or below a certain marker and whether “general” cause of death or congenital defects. Chromosomal abnormalities and deformations were a cause of death.

We can also conclude from the variations that are given that all races with the exception of Asians are above the standard mean. Also that abnormalities are a large portion of the total infant deaths compared to “normal”.

4The conclusions that can be made are this. Blacks and non Hispanic blacks skew the distribution heavily. Asians are well below the mean by a fairly significant amount. We can also conclude American Indians had a significant drop in post neo natal mortality rate between 2001 and 2002. I also feel that the information provided was pretty much on point with the data collected. I also think that there was a fairly big jump in multiple births between 2001 and 2002. However the amount of deaths stay relatively the same.

...Mean, Median, Mode, and Range
Mean, median, and mode are three kinds of "averages". There are many "averages" in statistics, but these are, I think, the three most common, and are certainly the three you are most likely to encounter in your pre-statistics courses, if the topic comes up at all.
The "mean" is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers. The...

...sample with data values of 27, 25, 20, 15, 30, 34, 28, and 25.
a) Compute the mean, median, and mode.
b) Compute the 20th, 65th, and 75th percentiles.
c) Compute the range, interquartile range, variance, and standard deviation.
Answers:
Data values: 15, 20, 25, 25, 27, 28, 30, 34
a) Mean: [pic]= ∑xi/n = (15+20+25+25+27+28+30+34) / 8 = 204 / 8 = 25.5
Median: Even number, so median is =...

...as the arithmetic mean or simply the mean. The mean is a measure of the center of the data. Average and mean are used interchangeably to label the result of the sum of all measurements divided by the number of measurements. In mathematical notation the formula for calculating the sample mean is given below.
If the value given represents the mean of all values in a population it is denoted .
When the...

...Mean, Mode and Median
Ungrouped and Grouped Data
Ungrouped Data refers to raw data
that has been ‘processed’; so as to
determine frequencies. The data,
along with the frequencies, are
presented individually.
Grouped Data refers to values that
have been analysed and arranged into
groups called ‘class’. The classes are
based on intervals – the range of
values – being used.
It is from these classes, are upper and
lower class boundaries found.
Mean...

...Mean, Mode and Median
Ungrouped and Grouped Data
Ungrouped Data refers to raw data
that has been ‘processed’; so as to
determine frequencies. The data,
along with the frequencies, are
presented individually.
Grouped Data refers to values that
have been analysed and arranged into
groups called ‘class’. The classes are
based on intervals – the range of
values – being used.
It is from these classes, are upper and
lower class boundaries found.
Mean...

...Mean, Median, Mode, and Range
Mean, median, and mode are three kinds of "averages". There are many "averages" in statistics, but these are, I think, the three most common, and are certainly the three you are most likely to encounter in your pre-statistics courses, if the topic comes up at all.
The "mean" is the "average" you are used to, where you add up all the numbers and then divide by the number of numbers. The...

319 Words |
1 Pages

Share this Document

Let your classmates know about this document and more at StudyMode.com

## Share this Document

Let your classmates know about this document and more at StudyMode.com