APPLIED PROBABILITY AND STATISTICS FZO1
PFZO 2026 CERTIFICATION EVALUATION
MATERIALS
◉ The scatterplot below depicts data of hours spent watching TV by
age:
{{ Scatterplot where the points appear to be random }}
What is the most likely correlation coefficient?
A) −5
B) −1
C) 0
D) 1. Answer: 0
◉ How will removal of the outlier affect the relationship between
missed work days and health rating in the scatterplot below?
{{ Scatterplot trending down and to the left with an outlier below
the surrounding points }}
,A) It will weaken the positive relationship.
B) It will weaken the negative relationship.
C) It will strengthen the negative relationship.
D) It will strengthen the positive relationship.. Answer: It will
strengthen the negative relationship.
◉ Where is the outlier in the scatterplot below?
{{ Scatterplot trending down and to the left
Y=Exercise (Minutes), going from 0 to 70 in increments of 10
X=Screentime (Hours), going from 0 to 11
1=60
2=50
3=68
4=30
5=20
6=10
7=10
}}
A) 2 hours of screen time
B) 3 hours of screen time
, C) 6 hours of screen time
D) 7 hours of screen time. Answer: 3 hours of screen time
◉ A local cable company would like to study how customers feel
about their services.
Which type of sampling frame should the cable company employ?
A) Customers who have issued a complaint about the company
B) Customers who have terminated their service
C) Customers who have contacted the company for assistance
D) All customers. Answer: All customers
◉ A local electronics store conducted a biased study. Their study
focused on customer satisfaction with the IT support that they offer.
They surveyed 250 randomly selected customers aged 18-25 who
contacted their IT support staff.
Where is the misalignment that caused the bias?
A) Sampling customers that contacted IT support
B) Conducting a survey
C) Sampling customers aged 18-25
PFZO 2026 CERTIFICATION EVALUATION
MATERIALS
◉ The scatterplot below depicts data of hours spent watching TV by
age:
{{ Scatterplot where the points appear to be random }}
What is the most likely correlation coefficient?
A) −5
B) −1
C) 0
D) 1. Answer: 0
◉ How will removal of the outlier affect the relationship between
missed work days and health rating in the scatterplot below?
{{ Scatterplot trending down and to the left with an outlier below
the surrounding points }}
,A) It will weaken the positive relationship.
B) It will weaken the negative relationship.
C) It will strengthen the negative relationship.
D) It will strengthen the positive relationship.. Answer: It will
strengthen the negative relationship.
◉ Where is the outlier in the scatterplot below?
{{ Scatterplot trending down and to the left
Y=Exercise (Minutes), going from 0 to 70 in increments of 10
X=Screentime (Hours), going from 0 to 11
1=60
2=50
3=68
4=30
5=20
6=10
7=10
}}
A) 2 hours of screen time
B) 3 hours of screen time
, C) 6 hours of screen time
D) 7 hours of screen time. Answer: 3 hours of screen time
◉ A local cable company would like to study how customers feel
about their services.
Which type of sampling frame should the cable company employ?
A) Customers who have issued a complaint about the company
B) Customers who have terminated their service
C) Customers who have contacted the company for assistance
D) All customers. Answer: All customers
◉ A local electronics store conducted a biased study. Their study
focused on customer satisfaction with the IT support that they offer.
They surveyed 250 randomly selected customers aged 18-25 who
contacted their IT support staff.
Where is the misalignment that caused the bias?
A) Sampling customers that contacted IT support
B) Conducting a survey
C) Sampling customers aged 18-25
