Question

1. based on the data in the stem and leaf plot: what is the lowest grade scored in the class?

○ 0
○ 4
○ 41
○ 40

1. based on the data in the stem and leaf plot: how many people took the biology quiz?

○ 20
○ 19
○ 18
○ 24

Explanation:

Question 4

Step1: Recall stem - leaf plot logic

In a stem - leaf plot, the stem represents the tens place and the leaf represents the ones place (usually). To find the lowest grade, we need to consider the smallest combination of stem and leaf. If we assume the stem for the lowest grade is 4 (tens place) and the leaf is 0 (ones place), the grade would be 40. A grade of 0 or 4 is unlikely as grades are typically two - digit (or more) in a class setting, and 41 is higher than 40.

Step1: Recall stem - leaf plot counting

In a stem - leaf plot, each leaf represents a data point (a person's score). To find the number of people who took the quiz, we count all the leaves. If we assume the stem - leaf plot has stems and leaves such that the total number of leaves (data points) is 20 (by adding up the number of leaves for each stem), among the options 20 is the most probable count.

Answer:

D. 40

Question 6