The annual rainfall at a certain place is normally distributed with mean 30. If the rain falls during the past eight years are 31.1, 30.7, 24.3, 28.1, 27.9, 32.2, 25.4 and 29.1. Can we conclude that average rainfall during the past eight years is less than the normal rainfall?
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.
please I neee the answer in the way of Ho and H1 . Thanks
Step by step
Solved in 2 steps with 2 images
