Statistics

no duffer

yes

Parentheses, or brackets, are often used as a way of indicating that the operation within the parentheses must be evaluated before other operations. Parentheses take top priority in the order in which operations are carried out (PEMDAS in US, BIDMAS in UK).

1100

The median is a more robust measure than the average, which means it is more resilient to the effects of outliers in your dataset.

Pascal's Triangle is an illustration of the coefficients of a binomial expansion. (There are also other patterns within the triangle, but it is primarily taught in relation to binomial expansion.) Each row begins and ends with the number one. The elements in each row are the sum of the two numbers above it in the previous row and continues indefinitely: 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1

Africa has the greatest number of children

younger than 15

Percent error = (actual value - theoretical value) / theoretical value * 100%

0.02 :)

depends on the size of the fish, the filtration, if it is salt or fresh... lots of variables.

A very rough estimate has always been 1 inch of fish per gallon of water.

3. They are 755, 575 and 557.

Uberstar is the xbox live gamertag for a particularly skilled gamer.

Physician

The first number can be selected 5 ways, the second 4 ways, the third three ways, the fourth two ways and the fifth one way so total number of ways is

5 x 4 x 3 x 2 x 1 = 120 ways

There's a one in six chance on a normal weighted one.

Independence of the events.

The six digit numeral in question is 6352.24.

When we discuss a sample drawn from a population, the larger the sample, or the large the number of repetitions of the event, the more certain we are of the mean value.

So, when the normal distribution is considered the sampling distribution of the mean, then more repetitions lead to smaller values of the variance of the distribution.

The biggest nine digit number would consist fully of '9's: 999,999,999

There are several answers which suggest this is simple but, as far as I can see, it is not. The height of the line must be the number of pupils who pick a particular colour but what about the "horizontal" axis. Should the order be red, blue, green? or red, green, blue? And why? Is the distance between red and blue the same as the distance between blue and green? Again, why - or why not? If you restrict yourself to the electromagnetic spectrum for visible light (rainbow colours), where would black and white and brown and purple go?

The three primary colours (red, green and blue) can be used to generate other colours and so these three components can be used as "coordinates" to define any basic colour. But even this is not enough to distinguish between red and pink (=red+white). To do that you would need to add three more dimensions - hue, saturation, luminance.

In the first case you could plot the information as a surface (not a line) in 4-dimensional space where the 3 independent variables are the amount or red, blue and green in the colour and the dependent variable is the pupil count. In the second case, you need a 7-dimensional space! Easy? I think not!

For an example of the RGB combinations, select format -> font -> font colour in Word, then select more colours and then custom. The default there is the RGB combination. The alternative is HSL.

70%

The number seventy billion is written 70,000,000,000 - eleven digits in total.

how does 100 meet the specification?

1 is in the hundreds digit and 0 is in the tens digit. 1 is not at least 0. this is a confusing question?!