Question

Helena is in charge of selling tickets for the upcoming play at Willowbrook School. Each drama club member has been asked to sell tickets to friends and family members, and Helena wants to know approximately how many tickets have been sold so far.

First she asked five drama club members in her homeroom how many tickets they had sold. Then she took ten random samples from the entire drama club of 75 students.

Find the mean to the nearest tenth for each set of data.

Homeroom Data of Tickets Sold:

20, 15, 19, 16, 10

Calculate the mean:


Drama Club Data of Tickets Sold:

19, 23, 11, 30, 27, 27, 22, 26, 16, 24

Calculate the mean:

Answer 1

the first mean is 16.0 and the second one is 22.5

Step-by-step explanation:

Edge test and I got it right :D

Answer 2

The mean can be calculated by average or sum of sample data divided by count the number of sample data.

The drama club data sample is more accurate than Helena sample.

Given:

Mean from drama club members is 16.

Mean from Helena is 22.5

The data sample from drama club members is more accurate because they chosen large sample and it is random sample which represent the target population. Also, the data from drama club is randomly chosen and more representative.

Thus, the drama club data sample is more accurate than Helena sample.