So for mean, the equation is (the sum of all the numbers/how many numbers there are)
Median is what number is in the middle when you arrange the numbers from smallest to greatest. If there are two numbers in the middle, you find the average of the two.
Mode is the number that is most repeated. If none of the numbers repeat, there is no mode.
80.)
Mean: [tex] \frac{10+11+18+24+30}{5} =\frac{93}{5} =18.6 [/tex]
Median: {10,11,18,24,30} The median is 18.
Mode: No mode because no numbers repeat.
81.)
Mean: [tex] \frac{4+8+9+9+10+14+16}{7} =\frac{70}{7} =10 [/tex]
Median: {4,8,9,9,10,14,16} The median is 9.
Mode: 9
82.)
Mean:[tex] \frac{14+14+14+17+19+20+21+22+25+26+28}{11} =\frac{220}{11} =20 [/tex]
Median: {14,14,14,17,19,20,21,22,25,26,28} The median is 20
Mode: 14
83.)
Mean: [tex] \frac{12+12+14+15+15+15+16+17+20}{9} =\frac{136}{9} =15\frac{1}{9} [/tex]
Median: {12,12,14,15,15,15,16,17,20} The median is 15.
Mode: 15
