There are 25 students in Mrs. Venetozzi's class at the beginning of the school year, and the average number of siblings for each student is 3. A new student with 8 siblings joins the class in November. What is the new class average for number of siblings?
Answers
Answer:
3
Step-by-step explanation:
Average siblings = total number of siblings for all students / total number of students
The total number of siblings for all the students = 25 × 3 = 75
There are 75 siblings in total for all the students.
When the new student joins the data changes as follows :
Students = 25 + 1 = 26
Siblings = 75 + 8 + 83 siblings
The new average for the siblings is thus given as :
83/26 = 3.19
Which is approximately 3 siblings per student.
Answer:
new class average for number of siblings = 3.192
Step-by-step explanation:
number of students = 25
Average number of siblings = 3
Total Number of siblings = 25 * 3 = 75
One students added = 25 + 1 = 26
Number of siblings = 75 + 8 = 83
Average number of siblings = 83/26 = 3.192
new class average for number of siblings = 3.192