HELP!!! Im doing a stats assignment at uni and have forgot everything to do with maths!?

Question

What are the definitions of mode, mean, range, interquartile range, and cummulative frequency? How do you work them out?? HELP

Answer 1

1 2 3 4 5 6 6 7 8

Mean is the average 1+2+3+4........ /9 =
Mode is the number that appears most = 6
Range subtract the smallest no. from the biggest = 8-1=7
Interquartile Range, Measures the spread of the centre half of the data set. Divide the data set into 4 equal segments

Q2 = 5
Q1= 2.5
Q3 = 6.5

To calculate the interquartile range find the difference between the third and first. Q3-Q1 = 6.5 - 2.5 = 4.5

Cummulative Frequency is just the percentage totals of the RELATIVE frequency. so you just add it up each set till you get to 1.

for example

Percentage
12/30 = .40
8/30 = .27
5/30 = .17
3/30 = .10
1/30 = .03
1/30 = .03

The Culmulative Percentage looks like this


.40
.67
.84
.94
.97
1.00

You get it now, you better give me best answer after all that!!!!

Answer 2

the mode is the most common term out of the set of numbers.
the mean is the average of all the nummbers.
the range is the largest number take the smallest number which deminds how spread our the data is.
interquatile range is more accute spread than the range.
the cummulative frequcey is the group frequceys ina table going from n to total adding each one in a spate table to form a graph so you can owrk out seren aproxation for any data using this graph im sorry but i cant tell you how to do this one becuase it would require me doing an execl doctument .


mode is the easist to work out becuase you just see which is the most common number that appears in your data and it can be more than one number ( or the highest if there is only 1 of each number in the data)

the mean is worked out by adding all the data together and divdie by how many terms there are .

the range you get the bigest and subtract it from the largest

the interquartile range in order to do this you have to but the numbers in order from 0- highest number and middile term is the middean
from that work out the middile terms between 0-middean and midden and higest nmumber which give you the low quartile and the higher quartalie . then you do higher qualtie take the lower qualtie.

sorry about my speeling and grammer i was never really good at english but i hope this helps you out becuase this is everything i was taught about them.

Answer 3

Mode- the most of the repeated number 2 4 6 8 8 8 5 9 the mode is 8 because there are 3 8's..

mean- average add them up and divide by how many 2+4+6+8+8+8+5+9 = 50 divided by 8( because there are 8 numbers listed )= 6.25

range.. subtract the lowest number from the highest number.. ex. 9-2=7 because 9 was the highest and 2 was the lowest.. i forget the other ones.. sory!

Answer 4

Take a deep breath and go do something else for an hour and stop panicking. You must already know most of this stuff or you wouldn't have gotten into university math in the first place. It will come back to you when you calm down if you ever knew it in the first place.

If for some reason you took a class and you don't have any of the required background for it, then Yahoo Questions won't help you pass the course and you need to drop it and try to get your money back, and take an introductory math course to get your background.

Answer 5

Remember all that you have forgotten but which is important for your present by doing meditation for an hour daily in just a week to a month after getting yourself realized.

Answer 6

specific, provided that i do no longer practice the subjects sufficient. With stable practice, it works out nicely. definitely everyone desires to realize, math demands practising issues plenty. definitely everyone says i'm stable at math yet fairly I only get stable practice.

Answer 7

search for a statistician