### Precalculus

by: Magdelena and Josh

Chapter 14

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Across
1.the term between any two nonconsecutive terms of an arithmetic sequence
3.in a frequency distribution, the class in which the median of the data is located.
5.data with two modes
6.a graphic form using bars to make comparisons among multiple aspects of statistical data.
10.a system of organizing data by determining classes and the frequency of values in each class.
12.a display of statistics data on a number line so that patterns and variability in data can be determined.
13.the difference between the first quartile point and the third quartile point.
15.when there is a large number of values in a set of data.
16.a symmetric bell- shaped graph of a normal distribution.
18.the entire set of items or individuals in the group being considered.
19.a measure of central tendency found by dividing the sum of all values by the number of values.
21.the standard deviation of the distribution of a sample mean.
22.the middle value of a set of data that has been arranged into an ordered sequence.
25.a number that represents the center or middle of a set of data.
26.the graph of two equations tat represent the same line are coinciding lines.
27.statistics based on information gathered in a sample to make predictions about a population.
30.a display of numerical data for which each value is separated into two numbers
31.a diagram that graphically displays the median, quartiles, extreme values, and outliers in a set of data.
33.a broken line graph drawn by connecting the class marks on a histogram.
35.the probability of the true mean being within a certain range of sample mean may be expressed as a level of confidence.
36.the arithmetic mean of the absolute value of the deviations from the mean of a set of data.
37.a measure of the average amount by which individual items of data deviated from the arithmetic mean of all the data.
38.the segments extending from the ends of the box in a box- and- whisker plot.
Down
2.the sum of the frequency of a class and the frequencies of previous classes.
4.one-half the interquartile range of a set of data.
7.in a box and whiskers plot the ends of the rectangular box which are located at the first and third quartiles.
8.one of four groupings of a set of data determined by the median of the set and the medians of the sets determined by the median.
9.a value of a set of data that is more than 1.5 interquartile ranges beyond the upper or lower quartiles.
11.a type of bar graph in which the width of each bar represents a class interval and the height of the bar represents the frequency in that interval.
14.the difference of the greatest and least values in a set of data.
17.a sample in which every member of the population has an equal chance to be selected.
20.a graphic form using bars to make comparisons of statistics.
23.a number that represents the variability or diversity of a set of data.
24.a graph plotted on a two-quadrant coordinate system with the horizontal scale repeated in each direction from the central axis used to show comparisons.
28.the upper and lower values in each class in a frequency distribution
29.the nth percentile of a set of data is the value of the data that is equal too or greater than n percent of the data.
32.the mean of the squares of the deviations from the arithmetic mean.
34.an item of a data that appears more frequently than any other in the set.

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