Question

Edward took a survey of his classmates to see how many pets each student has. The dot plot shows the results of his survey ll. 0 1 2 3 4 Number of Pets Part A How many people did Edward survey? Part B What is the mean number of pets?​

Answer 1

i. 5 people

ii. Mean number of pets = 2

Explanation:

i. From the information given in the question, the number of people surveyed by Edward is 5.

The first person has no pet, the second has 1 pet, the third has 2 pets, the fourth has 3 pets and the fifth has 4 pets.

ii. The mean number of pets is the average number of pets among the people.

The mean number of pets =
`(sum of the number of pets)/(number of people)`

=
`(0 + 1 + 2 + 3 + 4)/(5)`

=
`(10)/(5)`

mean number of pets = 2

The mean number of pets is 2.