# S 14 Histograms with Unequal Class Intervals .

35 views
Category: Fashion / Beauty
Description
A histogram with unequal class interims utilizes the thought of recurrence thickness . .. . . Sample. Recurrence Density = Frequency
Transcripts
Slide 1

﻿GCSE Maths Statistics & Probability S 14 Histograms with Unequal Class Intervals Subject Content Reference: S3.2h

Slide 2

3 Frequency Density 2 1 50 100 150 200 250 Time in minutes A histogram with unequal class interims utilizes the idea of recurrence thickness . . Recurrence Density = Frequency ÷ Class Interval Example The accompanying table demonstrates the time (in minutes) taken for 100 competitors to finish a marathon. Draw up a histogram and from it, assess the quantity of competitors who took between 2 1/2 and 3 hours to complete: Step 1: Draw the tomahawks for time and recurrence thickness . . Step 2: Draw in the bars . . Step 3: Shade in the parts of the histogram between 2 1/2 and 3 hours (150 and 180 mins) . . . . also, compute the recurrence spoke to = 1/2 (16) + 28 + 2/5 (35) = 8 + 28 + 14 = 50 answer It\'s critical to understand that the territory of every rectangle speaks to the (recurrence thickness x time)

Slide 3

Exercise 1) The accompanying table demonstrates the time taken for individuals from a cycling club to complete a 100 km philanthropy ride: a) Complete the table by figuring recurrence densities: b) Draw a histogram to demonstrate this data: c) Use the histogram to appraise the quantity of cyclists finishing the ride between 2 1/2 and 3 1/2 hours:

Slide 4

Exercise 1 (cont\'d) 2) The accompanying table demonstrates the separation shrouded via autos in a 24 hour race: a) Complete the table by ascertaining recurrence densities: b) Draw a histogram to demonstrate this data: c) Use the histogram to assess the quantity of autos covering somewhere around 2650 and 3150 km:

Recommended
View more...