Grade 11 and 12 Mathematics (Moderator: geoffrey)

Explain the difference between a J-shaped histogram and a skewed ...

Started by a0266361136

In an ogive, what does the vertical scale identify? ...

Started by LCritchfi

Explain what is wrong with the statement, The mean is always the best measure of central ...

Started by 123654777

Explain why it is possible to find the mean for the data of a quantitative variable, but not for a ...

Started by rlane42

If a sample has a standard deviation of 4.5, what is its variance? ...

Started by kodithompson

Explain the meaning of the following statement The data value x = 80 has a deviation value of ...

Started by stevenposner

On a standardized test, a student's z-score was near zero. What does this tell us about the ...

Started by CharlieWard

What statistical measure gives the range of the middle 50 of the ...

Started by captainjonesify

A normal distribution has a mean equal to 55.0 and a standard deviation equal to 7.5 . Find the ...

Started by brutforce

In general, the median, the midrange, and the midquartile are not necessarily the same value. Each ...

Started by washai

What does it mean to say that a particular value of x has a z score of ...

Started by segrsyd

Which measurement, A or B, is most representative for the data? ...

Started by armygirl

Consider the following sample: 26, 49, 9, 42, 60, 11, 43, 26, 30, and 14 . Find the ...

Started by armygirl

For a particular sample, the mean is 3.7 and the standard deviation is 1.2 . A new sample is formed ...

Started by LCritchfi

For a bell-shaped distribution, the range will be approximately equal to six standard deviations. ...

Started by Ebrown

The normal probability plot is an ogive drawn on probability paper. Indicate whether the statement ...

Started by sjones

In the event that the data do not display an approximately normal distribution, Chebyshev's Theorem ...

Started by Jramos095

Graphs that are chopped off may tend to emphasize the variation in the numbers without regard to the ...

Started by erika

According to the Empirical Rule, if the variable is normally distributed, then within one standard ...

Started by jace

According to Chebyshev's Theorem, what percent of a set of data will be more than three standard ...

Started by Marty

A sample of size 100 from a normal population has a mean of 110 and a standard deviation of 10.0 . ...

Started by melina_rosy

The lifetimes of electronic components have a mean equal to 2.5 years and a standard deviation equal ...

Started by Tazate

For a normal distribution, a value that is one standard deviation above the mean would be ...

Started by stephzh

According to Chebyshev's Theorem at least 75 of all the data in a particular sample lies between ...

Started by FButt

In problems that deal with two quantitative variables, we will present the sample data pictorially ...

Started by Cooldude101