18
It is: 21+18+15 = 54 and 54/3 = 18 which is the mean average
19
I added up all the numbers to get 126, then i divided that all by 7 to get 18. your final answer is 18.
Mean = Sum/Count = 359/15 = 23.933...
Mean (12, 18, 19, 20, 21) = 18
18
It is: 21+18+15 = 54 and 54/3 = 18 which is the mean average
19
I added up all the numbers to get 126, then i divided that all by 7 to get 18. your final answer is 18.
Mean = 21.6 Median = 19.5 Mode = 20 and 21 ------------------------------------------------------------------------ If the "2 1" (between 18 and 20 at the end) is supposed to be "21" then Mean = 26 Median = 20 Mode = 20
I think you mean 15+(3+2), which equals 20.20 jumps.=============================Answer #2:On the other hand, this contributor thinks you mean . . .start at 15 and jump 2, three times. If you do that, you land at 19.
They are 16, 18 and 20.
Mean = Sum/Count = 359/15 = 23.933...
20.37 is the mean.
In the example provided, the quartiles are: 25% = 16.5 (the median of {15, 16, 17, 18}) 50% = 18.5 (the median of {15, 16, 17, 18, 19, 20, 21, 22}) 75% = 20.5 (the median of (19, 20, 21, 22})
19. It is prime.