1) Put all the numbers in numerical order : 15, 23, 24, 25, 25, 25, 27 The median is the middle of the numbers : 25 Mode is the value that occurs more often : 25
2) Put all the numbers in numerical order : 2, 3, 3, 3, 3, 4, 4, 5 The middle of the numbers is 3 and 3 so, 3 + 3 = 6 6 : 2 = 3
Median = 3 Mode = 3
3) Put all the numbers in numerical order : 5, 7, 8, 9, 9, 10, 10, 10, 12 Median = 9 Mode = 10
4) Put all the numbers in numerical order : 0, 1, 1, 2, 2, 3, 3, 3, 4, 4
Median 2 + 3 = 5 : 2 = 2,5 Mode = 3
5) Put all the numbers in numerical order : 12, 13, 15, 18, 25 Median = 15 Mode = 0 (None)
6) Put all the numbers in numerical order : 1, 1, 2, 2, 3, 3, 3, 4, 4, 4, 5 Median = 3 Mode = 3 and 4
7) Put all the numbers in numerical order : 6, 8, 9, 10, 10, 12
Median 9 + 10 = 19 : 2 = 8 Mode = 10
8) Put all the numbers in numerical order : 28, 30, 30, 30, 30, 31, 31, 31, 31, 31, 31, 31
First of all we must calculate how far Kay traveled to her job, and then estimate the speed with which her husband traveled later.
d=vt
v=45 mph
t= 20 minutes/60 min/hour = 0.333 h (to be consistent with the units)
d= 45mph*0.333h= 15 miles
If Kay took 20 minutes to get to work and her husband left home two minutes after her and they both arrived at the same time, it means he took 18 minutes to travel the same distance.
To calculate the speed with which Kate's husband made the tour, we will use the same initial formula and isolate the value of "V"
d=vt; so
v=
d= 15 miles
t= 18 minutes/60 min/hour = 0.30 h (to be consistent with the units)