quiz scores\nstem|leaf\n5|7 9\n6|4 5 7\n7|0 3 6\n8|2 2 4 8\n9|2 5 9\n10|0 0\nkey: 8|4=84\nhow many students…
quiz scores\nstem|leaf\n5|7 9\n6|4 5 7\n7|0 3 6\n8|2 2 4 8\n9|2 5 9\n10|0 0\nkey: 8|4=84\nhow many students scored less than 70%?
Answer
Explanation:
Step1: Identify scores less than 70
Look at stem - leaf plot for scores in 50s and 60s.
Step2: Count the scores
In 50s, there are 2 scores (57, 59). In 60s, there are 3 scores (64, 65, 67).
Answer:
5