# Mean - practice problems

the arithmetic mean (simply the mean or average) is the sum of a collection of numbers divided by the count of numbers in the collection. The arithmetic mean is the most commonly used and readily understood measure of central tendency in a data set. It is a statistical characteristic of the center of a given data set.Arithmetic mean is a quantity very sensitive to extreme values, so the median and mode are also used in practice. Mode is the most common value. The median halves the ordered file.

#### Number of problems found: 542

- Harmonic HM example

Find the harmonic mean of 4 and 8. - Harmonic 4

Find the harmonic mean of -6 and 5. - Harmonic mean

Harmonic means of 6 and 12 - Three em

Find the mean, median, and mode for 31,63,75,75,98 - The average 3

The average of fractions is 7/10. One of the fractions is 2/3; the other fraction is? - HP - harmonic progression

Determine the 10th term of the harmonic progression 6,4,3,… - Find the mean

Find the number between 13 and 29. - Numbers

Find a number on the number line that has the same distance from these numbers: - Calculate 6688

Calculate the average of the numbers 2.3 4.01 0.65 6. - Z-score 3

A random variable X has a mean of 4 and a standard deviation of 2. What is the corresponding z-score for x = 7? - The midpoint

The midpoint of (2, 5) and (8, y) is (5, -1). Find the line equation in slope-intercept form. - Insert 5

Insert five harmonic means between 1/2 and 1/26 - Insert AP member

Insert arithmetic means between 75 and 180. - Dataset

Data: 11,15,11,16,12,17,13,21,14,21,15,22 Find dispersion of a given dataset. - The mean

The mean of four numbers is 5, and the mean of three different numbers is 12. What is the mean of the seven numbers together? - Midpoint between conjugate

Find the midpoint between two roots: 2+3.464i and 2 - 3.464i - Average 66794

Look for three numbers with an average of 2000. The middle number is 2000 - Six numbers

The average of 6 numbers is 3.95. the average of two of them is 3.4, while the average of the other two is 3.85. What is the average of the remaining two numbers? - 5-number summary

Given the following 5-number summary: 11, 19, 24, 30, 48, which of the statistics cannot be determined? - Insert 7

Insert five harmonic means between 3 and 18

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