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100 000 2 2 20 000 8 40 400 000 2 0.5 6 Number of mosquitoes Number of young Time 1 18 000 1 hour 1 5 1 second 500 9 million 1 hour 500 4.5 billion 500 hours 7 a 5 b 1000 c 2.26 × 108 tonnes 8 a 910 kg (2 s.f.) b 4600 tonnes (2 s.f.) c 180 000 tonnes (2 s.f.) 9 a 16 tonnes (2 s.f.) b (i) 4 minutes (ii) 30 seconds (iii) 70 seconds (iv) 8 ...
1.1 Definitions of Statistics, Probability, and Key Terms. Frequency, Frequency Tables, and Levels of Measurement. 2.1 Stem-and-Leaf Graphs (Stemplots), Line Graphs, and Bar Graphs. 2.2 Histograms, Frequency Polygons, and Time Series Graphs. 4.1 Probability Distribution Function (PDF) for a Discrete Random Variable.
The goal of statistics is not to perform numerous calculations using the formulas, but to gain an understanding of your data. The calculations can be done using a calculator or a computer. The understanding must come from you.
two notations developed over a long period of time: ln b and log b. These both represent the logarithm of b to the base e. In most modern texts, including this one, log b refers to the common logarithm of b (base 10), and ln b refers to the natural logarithm of b (base e).
On a calculator it is the "log" button. It is how many times we need to use 10 in a multiplication, to get our desired number. Example: log(1000) = log 10 (1000) = 3
Solving predictions and probability problems. Distinguishing between dependent and independent events. Interpreting charts and histograms. Our resources can be used online and offline, on virtually any computer or mobile device. Browse around our website and start playing! Find Math games to practice every skill.
25 Οκτ 2024 · The goal of statistics is not to perform numerous calculations using the formulas, but to gain an understanding of your data. The calculations can be done using a calculator or a computer. The understanding must come from you.
