Answer at the earliest i have exam tomorrow.

question:

from the chapter statistics there exist three methods of mean: direct, assumed and step deviation.

i have a confusion : which method should i apply?

as in exam you will be given use *appropriate* method. how should i know the method. is it fixi , fidi or fiui

What is the value of x? enter your answer in the box. x = two intersecting tangents that form an angle of x degrees and an angle of 134 degrees.

On new year's day, the average temperature of a city is 5.7 degrees celsius. but for new year's day 2012, the temperature was 9.8 degrees below the average. i) if a represents the average temperature on new year's day and 7 represents the temperature on new year's day 2012, what formula accurately relates the two values together? ii) what was the temperature on new year's day 2012? dt a 0.8 ii) - 4 1 degrees celsius da-t-98 ii) 59 degrees celsius 1) 7 = -9,8 11) 59 degrees celsius ii) l degrees celsius

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.