Question

question
a teacher put all her students quiz scores up on the dot plot below.
quiz scores
points
how many students are in the class?
answer attempt 1 out of 2
students
submit answer

Explanation:

Step1: Count the number of dots for each score

• For score 60: count the dots. There are 6 dots.
• For score 65: 2 dots.
• For score 70: 4 dots.
• For score 75: 4 dots.
• For score 80: 1 dot.
• For score 85: 1 dot.
• For score 90: 4 dots.
• For score 95: 2 dots.
• For score 100: 3 dots.

Step2: Sum up the number of dots

$$6 + 2+4 + 4+1+1+4+2+3$$

$$=(6 + 2)+(4 + 4)+(1 + 1)+(4 + 2)+3$$

$$=8+8+2+6+3$$

$$=27$$

Answer:

27