1. The students in one social studies class were asked how many
brothers and sisters (siblings) they each have. The dot plot here shows
the results.
0 1 2
a. How many of the students have six siblings?
b. How many of the students have no siblings?
c. How many of the students have three or more siblings?
2 3 4 5 6
2. The resting pulse rates were recorded for 16 boys in gym class
before they exercised. The line plot here shows the results.
X
X
X
X
X
X X
ХХХ
79 80 81 82 83 84
X
X
85
a. What is the range of the pulse rates?
b. How many boys had a pulse rate over 81?
c. How many boys had a pulse rate of 83?