INDEPENDENCE OF EVENTS 37 10. Show that the converse of Theorem 2 also holds. Thus A and B are independent if, and only if, A and Be are independent, and so on 11, A lot of five identical batteries is life tested. The probability assignment is assumed to be P(A)= (1/A)e/Adx for any event AC 0,00), where A > 0 is a known constant. Thus the probability that a battery fails after time t is given by P(t, 00)= (1/A)e/dx, t0. If the times to failure of the batteries are independent, what is the probability that at least one battery will be operating after to hours? 12. On =(a, b), -oo
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.
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