A manufacturing machine has a 70% defect rate. If 119 items are chosen at random, answer the following. a) Which is the correct wording for the random variable? rv X = the number of 119 randomly selected items that are defective b) Pick the correct symbol: n = 119 c) Pick the correct symbol: p: V = 0.7 d) What is the probability that exactly 81 of them are defective? Round final answer to 4 decimal places. e) What is the probability that less than 81 of them are defective? Round final answer to 4 decimal places. f) What is the probability that more than 81 of them are defective? Round final answer to 4 decimal places. g) What is the probability that exactly 86 of them are defective? Round final answer to 4 decimal places.

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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.