I don't know if this is right, but I'm pretty sure it's B.
If I pick 10, then 2(10)+13=33
If I pick 15, then 2(15)+13=43
If I pick 12, then 2(12)+13=37
Answer:
mean - 12.5
SD - 12.0
Step-by-step explanation:
Answer:
1. 54 and 9/20 km
2. 80 mm
3. 1.142 mi
4.0.83333 cm
Step-by-step explanation:
Do them all by the butterfly method.
4/52 = 1/13 <== here ya go