EXERCISES 1. The probability of a dry summer is equal to 0.3, the probability of a wet summer is equal to 0.2, and the probability of a summer with normal precipitation is equal to 0.5. A climatologist observed the precipitation during three consecutive summers. BinomiaL (a) How many outcomes are in the sample space? Enumerate the sample space, and assign probabilities to each simple event. woT|NTY (b) What is the probability of observing two dry summers? dryl (Continued) 07/NOTW Statistical Methods for Geography 84 (Continued) (c) What is the probability of observing at least two dry summers? (d) What is the probability of not observing a wet summer? their county of residence in

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Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.