WebIn order to draw a box plot: Determine the median and quartiles. Draw a scale, and mark the five key values: minimum, \bf {LQ} LQ, median, \bf {UQ} UQ, and maximum. Join the \bf {LQ} LQ and \bf {UQ} UQ to form the box, and draw horizontal lines to the minimum and … WebThe distribution of daily average wind speed on an island over a period of 120 days is displayed on this box-and-whisker diagram. (a) Write down the median wind speed. (b) Write down the minimum wind speed. (c) Find the interquartile range. (d) Write down the number of days the wind speed was between 20 kmh -1 and 51 kmh -1.
AS/A Level Mathematics Box Plots and Outliers
WebA box plot is a graph that clearly shows key statistics from a data set It shows the median, quartiles, minimum and maximum values and outliers It does not show any other individual data items WebA Level Example 2: Boxplots Create a boxplot for the following data: 1,9,11,12,15,16,18 1,9,11,12,15,16,18 where a point is considered to be an outlier if it is more than the interquartile range lower than the first quartile or higher than the third quartile. [6 marks] … raw materials budget managerial accounting
Box and Whisker Diagrams - Maths A-Level Revision
WebJan 22, 2024 · A box plot gives a five-number summary of a set of data which is-. Minimum – It is the minimum value in the dataset excluding the outliers. First Quartile (Q1) – 25% of the data lies below the First (lower) Quartile. Median (Q2) – It is the mid-point of the dataset. Half of the values lie below it and half above. WebBox and whisker plots will often show outliers as dots that are separate from the rest of the plot. Here's a box and whisker plot of the distribution from above that does not show outliers. Here's a box and whisker plot … WebYou must work out the relative frequency before you can draw a histogram. To do this, first decide upon a standard width for the groups. Some of the heights are grouped into 2s (0-2, 2-4, 6-8) and some into 1s (4-5, 5-6). Most are 2s, so we shall call the standard width 2. To make the areas match, we must double the values for frequency which ... raw materials buildings and machinery are