Question

350 people visited a zoo the zoo has four types of tickets the manager wants a sample of size 30, stratified by ticket type. how man teenagers should be be in the sample

Answer 1

We can see here that if we estimate that 20% of the total population are teenagers, then approximately 6 teenagers should be included in the sample of 30, stratified by ticket type.

To determine how many teenagers should be included in a sample of 30, stratified by ticket type, we need to consider the proportion of teenagers in the total population and apply that proportion to the sample size.

To calculate how many teenagers should be in the sample, we need to apply the proportion to the sample size.

Teenagers in Sample = Proportion of Teenagers × Sample Size

Teenagers in Sample = 0.20 × 30

Teenagers in Sample = 6

Therefore, if we estimate that 20% of the total population are teenagers, then approximately 6 teenagers should be included in the sample of 30, stratified by ticket type.

Answer 2

10 teenagers

Explanation:

using the formula i took the sample size of 30, then added all of the cumulative frequency to get to 650

no of teenagers = 10