Answer:
3.16
Step-by-step explanation:
Mean:
(12+14+5+13+11)/5
11
Sum of squares:
12²+14²+5²+13²+11²
655
Variance = 655/5 - 11²
= 10
sd = sqrt(10)
3.16227766
Answer:
Fatima's unit rate is 9.5 minutes per mile.
Step-by-step explanation:
To compute the one unit value of a variable divide the total values of <em>n</em> variables by <em>n</em>.
It is provided that it took Fatima 19 minutes to run 2 miles.
Then the unit rate at which Fatima runs is:


Thus, Fatima's unit rate is 9.5 minutes per mile.
12/3 = S/52
Solve ;
*12×52∛= 624
*624/3 = 208
[s=208 ]
Answer:
207°
Step-by-step explanation: