Statistics

See attached link.

It is not possible to answer the question without some information about the variability in the mass of the coins.

If you have a rubbish mint and the masses vary a lot then you will need a much greater sample than if the mint operates effectively.

7 + 9 + 8*1

Iowa is one of the states in the United States of America. It is one of 50 of these political units. More information is available on its wikipedia page.

The mean absolute deviation of this problem is 6.

It is: 6798/28 = 242 with a remainder of 22

Only 1, since the order of the digits does not matter in a compbination. In a permutation, yes, but not combination.

mode is the most occurring number in your values.

Median is the middle number so if you write out all your numbers from smallest to largest it is the number in the middle or a quicker way is just to half your total number of values and use that to find the middle number. e.g if you had 1 2 3 4 5 6 7 8 9 10 you would half 10 to give 5 then find the fifth number which is 5.

the range is the largest number of all your values take away the smallest value. so if you had 1 2 3 4 5 6 7 8 9 10 your range would be 9 (10-9=1)

How often something happens.

If you mean there will be 4 billion winners from a population of 64 billion people - the odds are 16:1

95

It is 4 because its place value is 400,000,000

If y represents the year then

prevalence(y, y+1) = 0.12*(y-1999) + 13.8

Only 3 if the sticks can only be used once in each triangle.

1 of 26

19

700,000

by making them half

1.8901

The best thing that I can think of is to look in a book and summarize the definitions, and then by the time you do that you should be able to just look at the # and know.

A circle graph or pie chart shows the relative size relationship among parts of a whole as a circle with lines from the center to the edge dividing the circle into parts of the same relative sizes. For example, if you wanted to illustrate that 3/16 of the class likes breakfast best, 5/16 prefers lunch and half prefer dinner, you would show a circle divided into three parts, one part being 3/16 of the circle, one part that is 5/16 of the circle, and the third being half of the circle. In other words, you would make a line from a point on the circle through the center to the point on the opposite edge of the circle, dividing it in half. Then you would draw another line from the center to the edge that is 67.5° or 112.5° from the first line (67.5° is 3/16 of 360°, 112.5° is 5/16 of 360°, and 360° is a full circle). Then label the parts.

1/2

mean =(5+9+10+2+7+9+14)/7=8

s^2 = Variance = (1/7){(5-8)^2+(9-8)^2+(10-8)^2+(2-6)^2+(7-8)^2+(9-8)^2+(14-8)^2}=14.6666

Standard deviation =s= sqrt(14.6666)=3.8297

In the 400-500 range if NIB. If just the revolver deduct 50-75.

factorial six

tat is 6*5*4*3*2*1=720 combinations