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Basic Statistics

Given a number set, and an optional probability set, this calculates the following statistical items:

Expected Value

Mean = μ

Variance = σ^{2}

Standard Deviation = σ

Standard Error of the Mean

Skewness

Mid-Range

Average Deviation (Mean Absolute Deviation)

Median

Mode

Range

Pearsons Skewness Coefficients

Entropy

Upper Quartile (hinge) (75th Percentile)

Lower Quartile (hinge) (25th Percentile)

InnerQuartile Range

Inner Fences (Lower Inner Fence and Upper Inner Fence)

Outer Fences (Lower Outer Fence and Upper Outer Fence)

Suspect Outliers

Highly Suspect Outliers

Stem and Leaf Plot

Ranked Data Set

Central Tendency Items such as Harmonic Mean and Geometric Mean and Mid-Range

Root Mean Square

Weighted Average (Weighted Mean)

Frequency Distribution

Successive Ratio

Expected Value

Mean = μ

Variance = σ

Standard Deviation = σ

Standard Error of the Mean

Skewness

Mid-Range

Average Deviation (Mean Absolute Deviation)

Median

Mode

Range

Pearsons Skewness Coefficients

Entropy

Upper Quartile (hinge) (75th Percentile)

Lower Quartile (hinge) (25th Percentile)

InnerQuartile Range

Inner Fences (Lower Inner Fence and Upper Inner Fence)

Outer Fences (Lower Outer Fence and Upper Outer Fence)

Suspect Outliers

Highly Suspect Outliers

Stem and Leaf Plot

Ranked Data Set

Central Tendency Items such as Harmonic Mean and Geometric Mean and Mid-Range

Root Mean Square

Weighted Average (Weighted Mean)

Frequency Distribution

Successive Ratio

Grade Point Average (GPA)

Calculates Grade Point Average (GPA) based on letter grades entered.

Inclusive Number Word Problems

Given an integer A and an integer B, this calculates the following inclusive word problem questions:

1) The Average of all numbers inclusive from A to B

2) The Count of all numbers inclusive from A to B

3) The Sum of all numbers inclusive from A to B

1) The Average of all numbers inclusive from A to B

2) The Count of all numbers inclusive from A to B

3) The Sum of all numbers inclusive from A to B

Inventory Turnover and Average Inventory

Calculates inventory turnover ratio and average inventory

Missing Average

Given a set of scores and an average, this calculates the next score necessary to attain that average

Receivables Ratios

Given Net Sales, Beginning Accounts Receivable, and Ending Accounts Receivable, this determines Average Accounts Receivable, Receivables turnover ratio, and Average Collection Period.

Sine Wave

Solves for any of the 3 items of the Sine Wave: Peak Value, Average Value, and RMS value given 1 input.

Weighted Average Cost of Capital (WACC) and Capital Asset Pricing Model (CAPM)

Calculates the Weighted Average Cost of Capital (WACC) and also calculates the return on equity if not given using the Capital Asset Pricing Model (CAPM) using debt and other inputs such as Beta and risk free rate.

The average of manny three tests is an 84. What must he get on a 4th test to raise his average to a

The average of a number and double the number is 25.5

Jack scored a mean of 15 points per game in his first 3 basketball games. In his 4th grade, he score

A student walks 1500 meters to school in 30 minutes. What is their average speed in meters per minut

The distribution of actual weights of 8 oz chocolate bars produced by a certain machine is normal wi

A student has an average mark of 68 from 10 tests. What mark must be gained in the next test to rais

A compact disc is designed to last an average of 4 years with a standard deviation of 0.8 years. Wha

How many dimes must be added to a bag of 200 nickels so that the average value of the coins in the b

HELP SOLVE

Which of the following is NOT TRUE about the distribution for averages?

A typical adult has an average IQ score of 105 with a standard deviation of 20. If 20 randomly selec

Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed wit

Facebook provides a variety of statistics on its Web site that detail the growth and popularity of t

Frank averages 1 strike for every 4 frames that he bowls. If he bowled 48 strikes in 1 season, how m

Previously, an organization reported that teenagers spent 4.5 hours per week, on average, on the pho

Suppose that previously collected traffic data indicate that, during the afternoon rush hour, an ave

It is estimated that weekly demand for gasoline at new station is normally distributed, with an aver

Suppose a firm producing light bulbs wants to know if it can claim that its light bulbs it produces

A teacher assumed that the average of grades for a math test was 80. Imagine 20 students took the te

Imagine that a researcher wanted to know the average weight of 5th grade boys in a high school. He r

Imagine that a researcher wanted to know the average weight of 5th grade boys in a high school. He r

Imagine that a researcher wanted to know the average weight of 5th grade boys in a high school. He r

Imagine a researcher posed a null hypothesis that in a certain community, the average energy expendi

Mimi just started her tennis class three weeks ago. On average, she is able to return 20% of her opp

Lucy has taken four tests in math class and has an average of 85. i. What score would she have to g

The relief time provided by a standard dose of a popular children’s allergy medicine averages 7.9

A passenger train left station A at 6:00 P.M. Moving with the average speed 45 mph, it arrived at st

Susie bought 15 pairs of shoes last year for an avarage of 30$ per pair. She sold each pair for 1/3

Your grandma gives you $10,000 to invest for college. You get an average interest rate of 5% each ye

Math Written Assignment

The weight of a 9.5-inch by 6-inch paperback book published by Leaden Publications, Inc., is 16.2 oz

A ship is traveling at an average velocity of 28 miles per hour. How far will the ship travel in two

The average cost of printing a book in a publishing company is c(x) = 5.5x+kx, where x is the numbe

A sprinter runs 400 meters in 54 seconds. What is the runners average running rate in meters per sec

Par on a golf course is 72. If a golfer shot rounds of 74, 70, and 71 in a tournament, what will she