II. The pH of a solution is measured eight times by one operator using the same instrument. She obtains the following data: 7.15, 7.20, 7.18, 7.19, 7.21, 7.20, 7.16, and 7.18. Solve for: mean, median, mode, range, variance and standard deviation.
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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I. The following data are the joint temperatures of the 0-rings ("F) for each test firing or actual launch of the space shuttle rocket motor.
84, 49, 61, 40, 83, 67, 45, 66, 70, 69, 80, 58, 68, 60, 67,72, 73, 70,
57, 63, 70, 78, 52, 67, 53, 67, 75, 61, 70, 81, 76, 79, 75, 76, 58, 31
A. Construct a frequency distribution table showing:
1. class intervals
2. class marks
3. class boundaries
4. frequencies
5. percent relative frequencies
6. less than cumulative frequencies
7. greater than cumulative frequencies
B. Construct the graphical representations:
1. histogram
2. frequency polygon
3. less than cumulative frequency
4. greater than cumulative frequency.
C. Solve for the:
1. mean
2. median
3. mode
4. range
5. variance
6. standard deviation
II. The pH of a solution is measured eight times by one operator using the same instrument. She obtains the following data:
7.15, 7.20, 7.18, 7.19, 7.21, 7.20, 7.16, and 7.18.
Solve for: mean, median, mode, range, variance and standard deviation."
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