Firstly, put Derek and Paul's collection together:
1950, 1952, 1908, 1902, 1955, 1954, 1901, 1910, 1929, 1935, 1928, 1930, 1925, 1932, 1933, 1920
1950+1952+1908+1902+1955+1954+ 1901+1910+1929+1935+1928+1930+ 1925+ 1932+1933+1920
=30864
=30864÷16
=1929
∴the mean is 1929.
Median:
1901, 1902, 1908, 1910, 1920, 1925, 1928, 1929, 1930, 1932, 1933, 1935,
1950, 1952, 1954, 1955
1930÷1929
=1.0005184
= Median
Range:
1955-1901
=54
∴the range is 54.
Area = 35*20/2 = 35*10 = 350 square centimeters
hope helped
N=(x)+M+(B) that's ur answer
Answer:
A. Mean
Step-by-step explanation: Bc all Teachers average the grades using Mean.
Also if there is an outlire you need to use mean, Bc the Med won't be an exact average of the grades.
Answer:
x=3 y = 4
Step-by-step explanation:
3x+5y=29 .........*2 (multiply by2) = 6x+10y=58
2x+3y=18 *-3 = (multiply by -3)= -6x-9y = -54
ADD both(-6x cancels 6x) y= 4
2x+ 3y = 18 2x+ 12 = 18 2x = 6 x = 3