. a yellow liquid with a mass of 2.8 g and a volume of 2 mL
a green liquid with a mass of 6 g and a volume of 3 mL
a red liquid with a mass of 1.8 g and a volume of 2 mL
an orange liquid with a mass of 1.3 g and a volume of 1 mL
a blue cube with a mass of .8 g and a volume of 2 cm
a pink star with a mass of 2.4 g and a volume of .8 cm
.
.
T
14 -
응
Mass
(g)
Volume
(mL or cm)
Object
Density
(g/mL or
g/cm')
2.8g
2ml
yellow liquid
green liquid
red liquid
6g
3ml
1.8g
2ml
1.38
1ml
orange liquid
blue cube
8g
2cm
Bcm3
pink star
1. Which liquid is the most dense?
2. Which liquid is the least dense?
green
blue
O

An annual marathon covers a route that has a distance of approximately 26 miles. winning times for this marathon are all over 2 hours. the following data are the minutes over 2 hours for the winning male runners over two periods of 20 years each. earlier period 14 12 15 22 13 10 19 13 9 14 20 18 16 20 23 12 18 17 6 13 recent period 7 11 7 14 8 9 11 14 8 7 9 8 7 9 9 9 9 8 10 8 (a) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the earlier period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks. for more details, view how to split a stem.) minutes beyond 2 hours earlier period 0 1 2 (b) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the recent period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks.) minutes beyond 2 hours recent period (c) compare the two distributions. how many times under 15 minutes are in each distribution