The n-th term of a geometric sequence with initial value a and common ratio r is given by 
.
We have 
and 
and 
Substitute:
Answer:
Step-by-step explanation:
-61.6 degrees Fahrenheit
Answer:
2. Alex sent the questionnaire only to those who live near her.
Step-by-step explanation:
Given scenario is :
Alex is conducting a survey for a car company. She decides to start by interviewing some people in her neighborhood.
She prepares a questionnaire and emails it to 50 neighbors who own cars. Of those neighbors, 24 respond.
We can see that Alex sent the questionnaire to only her neighbors or people who live near her, so this will be the reason the sample will be biased.
