Math

Refine Search

What is a box-and-whisker plot?

The interpretation of a set of data can be made simpler and easier by devising measures of location, which is either a computed value, such as averages, or a probability distribution of a sample statistic. The three commonly used measures in statistics are the mean, mode and median. The mean is the common average, where all values are added up and then divided by how many data values there are in a sample. The mode is the most repeated value in the data set. When the values are arranged in increasing order, the middle value is called the median.The way a set of data is clustered or distributed..

Continue Reading

What are rational and irrational numbers?

Because a ratio can written as a fraction, any rational number can be expressed as a fraction. For example, the number 7 can be written as 7/1. The number 1.25 can be written as 5/4. The repeating decimal .333... can be written as 1/3. These are all rational numbers. Complex fractions, such as 97/98, often result in a long series of numbers after the decimal point, but the series must ultimately terminate or fall into a repeating pattern. The fact that the number can be expressed as the ratio of two whole numbers means it is, by definition, rational.\nIrrational numbers, such a pi, cannot be w..

Continue Reading

What is the difference between a numerator and a denominator?

Another difference is that the denominator indicates the total parts of a whole, and the numerator is the amount of the whole being assessed. In one-half, the whole is two parts and one is the portion of the parts. To convert a fraction to a decimal point, one divides the numerator by the denominator. The slash between the numbers is akin to a division sign. Thus, one divided by two equals 0.5.

Continue Reading

What are some good calculators for averaging final grades?

Mercer University provides a section to input each assignment's name, the grade earned, and its weight percentage of the course grade. The calculator then outputs the course average for the listed assignments.\nCalculate My Grade offers more options for final grade calculation, such as final course grade, cumulative GPA at the end of a semester, and what grade a student must receive to earn a grade of A, B, C or D in a course.

Continue Reading

How are fractions reduced to their simplest form?

In the first method, check whether the numerator and denominator of the fraction both end in zero. If so, divide both numbers by 10. Repeat this until one or both numbers no longer end in zero. If one or both numbers end in five, or if one ends in five and the other in zero, divide both numbers by five.\nNext, if both numbers are even, divide both by two. To see whether the numerator and denominator are divisible by three, add the digits in each number. If the total is three or a multiple of three, divide both numbers by three. Check to see whether the top and bottom numbers are evenly divisib..

Continue Reading

How do you use "not equal" in Python?

The test condition a != b returns false if a is equal to b, or true if a is not equal to b. A programmer can use this expression in the statement if(a != b) followed by an indented block of code, in which case the indented code block is only executed if a is not equal to b. In older versions of Python, the "not equal" operator could also be written as .

Continue Reading

What are some real-life examples of parallel lines?

For example, a rectangle or a square is made up of four sides, where the opposite sides are parallel to each other. In a trapezoid, two of the sides are parallel where as the other two are slanted towards each other and, therefore, are not. Because of the many shapes in which parallel lines can be found, they have several applications in everyday objects.In geometry, parallel lines can be identified and drawn by using the concept of slope, or the lines inclination with respect to the x and y axis. Two lines with the same slope do not intersect and are considered parallel. In the standard equat..

Continue Reading

What is the law of syllogism in geometry?

For example, if Jane encounters a traffic jam today, she reports to work late, and if Jane reports to work late, her boss penalizes her. Letting "p" be the statement “encounters a traffic jam today,” "q" be the statement “reports to work late” and "r" be the statement “her boss penalizes her,” by the law of syllogism, a third statement may be deduced that if Jane encounters a traffic jam today, her boss will penalize her.\nThe relationship between "p" and "q," which is p ? q and read as "if p, then q," is called a conditional statement and involves a hypothesis that’s followed by..

Continue Reading

How do you use front end estimation to estimate numbers?

Each number in the problem should be rounded to a single non-zero digit. If the second digit is five or greater, then add one to the first digit; otherwise, retain the first digit as it is. Set all the other digits to zero, so as to retain the place value. For instance, 27,656 becomes 30,000, 43 becomes 40, and 2 remains 2. Then perform the calculation required. This method of estimation can be used for any type of calculation, and the result is an estimate of the result of the full calculation.\nFor instance, if you want to add 456 to 882, first round the two numbers in the problem: 456 becom..

Continue Reading

How many vertices does a pentagonal prism have?

Comparatively, a rectangular prism has eight vertices, 12 edges and six faces. A triangular prism contains six vertices, nine edges and five faces. A hexagonal prism has 12 vertices, 18 edges and eight faces. Every time an edge of a regular polygon is added to a three-dimensional prism, the vertices increase by two, the edges increase by three and the faces increase by one. The reverse is true when an edge is subtracted from a regular polygon in a prism-like figure.

Continue Reading
Showing 1 to 10 of 3956 (396 Pages)