Please answer and label each part
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.
![1. Chocolate bars are manufactured on two production lines "A"
and "B" at a rate of 1000 per hour in a 24-hour, 7 day per week
operation. The product must achieve a total minimum weight of
95 g and the weights measured from two sample batches "A"
and "B" each of 10 bars were as follows:
A (g)
B(g)
97.04
97.10
97.19
97.66
96.75
97.60
97.13
97.05
97.76
97.63
97.48
97.32
97.64
97.85
97.75
97.15
97.65
96.50
96.40
97.45
Determine:
(a) The mean value and standard deviation of each sample
and explain why 95g cannot be achieved exactly
(b) The probability that the weight of bars can be controlled to
98.0g with 99 % confidence. State the preferred line and
explain your answer. [use statistical table provided]
(c) Using the mean weight, state which production line will be
more efficient and quantify the amount of chocolate [kg]
saved by using this route over a one-week period.
[Show all working to support your answers]
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