Question

score on last try: 0.33 of 1 pts. see details for more. at least one scored part is incorrect. jump to first changable incorrect part. you can retry this question below the dotplot below shows ages for 50 math students in the spring 2021 quarter: how many students were 20 years old? how many students were at least 37 years old? what percentage of students were younger than 32 years old? question help: written example message instructor

Explanation:

Step1: Count students aged 37 or more

Count dots for ages 37 - 50. There are 2 (at 37 - 38) + 8 (at 40) + 1 (at 42) + 2 (at 45) + 1 (at 47) + 1 (at 50)=15.

Step2: Count students younger than 32

Count dots for ages 15 - 31. There are 3 + 10 + 8 + 4 + 2 + 1=28.

Step3: Calculate percentage younger than 32

Use formula $\text{Percentage}=\frac{\text{Number of students younger than 32}}{\text{Total number of students}}\times100$. So $\frac{28}{50}\times100 = 56$.

Answer:

How many students were at least 37 years old? 15
What percentage of students were younger than 32 years old? 56%