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How do you find a missing number when you already know the mean?

The mean, or average, of a data set is calculated by summing all of the numbers in the data set and dividing that sum by the number of data points in the set. If the mean of a data set is known, then that mean contains information on the missing number. Multiplying the mean by the number of data points gives the "true" sum of all the data points, including the missing number.\nThe sum of the known data points is less than this true sum, because the sum of the known points does not include the value of the missing number. The difference between the sum of the known data points and the true sum ..

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What is an example of a rhombus in real life?

A rhombus is a type of parallelogram and a parallelogram has two sets of parallel sides and it is a simple quadrilateral. The rhombus has four straight, equal sides and it is flat. The length of all four sides is equal, and the opposite angles are equal. To calculate the area of a rhombus, use the following formula: area = altitude x side length. To get the perimeter, simply take the side length and multiple this by four.

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Where can you find a Canon calculator manual?

Visitors to the website may browse the company’s entire line of calculators, view features and specifications, locate local and online retailers, or order items directly from Canon. Customers can download brochures and product manuals, locate accessories and supplies, and find reference materials, operating tips and educational tools. They can also view instructional videos for most products. The site also provides information and manuals for all other types of Canon consumer and home office products including cameras, camcorders, printers, copiers and scanners, among others.

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What formula is used to find a sample variance?

In math, variance will always be a nonnegative. In statistics and probability, variance tells someone how spread out a set of numbers are. All values are identical when there is a variance of zero. Those performing statistics use the sample mean to estimate the population mean. It works to measure location and the symbol is usually an x-bar.

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Are there advanced calculators available online?

Meta-Calculator's graphing calculator allows users to graph equations, find their intersections and create a table of values. The scientific calculator solves trigonometric functions, inverses, logs and permutations and combinations. The matrix calculator adds, multiplies and transposes matrices. Lastly, the statistics calculator computes standard deviations, correlation coefficients, regressions and T-Tests.\nAlcula's scientific calculator comes with an online instruction manual to assist users with its use. The website explains that it is a formula calculator and users enter expres..

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What are descriptive statistics?

A common descriptive statistic is the mean or average of the statistical information that is gathered in the collection of information. This is normally found by dividing the sum of the data by the sample size. Range is used to show the distance between the two most extreme values in the collected date. It's calculated by simply subtracting the smallest value from the largest to show the difference in the two statistics. Keeping track of variances as part of the descriptive statistics is helpful because it can show at a glance the deviation away from the mean or average of the date collec..

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How do you set up a mobile hotspot with your AT&T phone?

For example, setting up a hotspot on an Apple iPhone or other 4G iOS device is a simple three-step process. From the home screen, select Settings. In the settings menu, tap the item labeled Cellular. In the new panel, select Personal Hotspot. This launches the Wi-Fi hotspot and provides a password for devices to tether to the hotspot.\n\nHotspots for android devices are set up similarly. From the home screen, choose Settings. In this panel, choose More Networks, and navigate to Tethering and Wi-Fi Hotspot. This enables the hotspot and provides instructions for connecting with it.\n\nIf the dev..

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What is the next number in the series 2, 5, 11, 20, 32, 47?

To derive this number of the series, it is necessary to elucidate the correlation between these numbers in the series. Consider the difference between the consecutive numbers in the series. 5 - 2 = 3 = 3 x 111 - 5 = 6 = 3 x 220 - 11 = 9 = 3 x 332 - 20 = 12 = 3 x 447 - 32 = 15 = 3 x 5 As seen through the various calculations, the difference between the first two consecutive numbers is 3. Thereafter, the difference between consecutive numbers follows a symmetrical pattern: they are all serial multiples of 3. Thus, the difference between the consecutive number is 3, 6, 9, 12, 15. The next number ..

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What does input and output mean in math?

Functions are mathematical language to show the relationship of two variables, most often found in college level algebra and trigonometry. An example of a function is f(x) = x + 4. The solution, f(x) is also the y variable, or output. To solve the equation, simply choose a number for x, the input. The relationship is x + 4. If a problem solver wants to find the output if the input is 5, then the equation becomes: f(5) = 5 + 4. Then by completing the problem, f(5) = 9, 9 is the output. This is a very basic example, however, functions can become very complex problems in advanced math as the rela..

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How do you solve inequalities with fractions?

Find the critical valuesIn inequalities involving fractions, it's important to take note when the inequality switches from true to false or there is a zero-denominator. Solve for the inequality as if it were an equation and solve for zero-denominators.\n\nFor example, the starting inequality might be (x + 3)/(x - 2) > -2\n\nRewrite it as (x + 3)/(x - 2) = -2 and solve for x.\n(x + 3)/(x - 2) = -2\n(x - 2)*(x + 3)/(x - 2) = -2*(x - 2)\nx + 3 = -2x + 4\nx + 2x = 4 - 3\n3x = 1\nx = 1/3\n\nSolve for x - 2 = 0. \nAt x = 2, there is a zero denominator.\n\nThe critical points are 1/3 and 2.Test ..

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