WGU C955 Probability and Statistics Objective Assessment Exam (100% Verified)

WGU C955 Probability and Statistics Objective
Assessment Exam (100% Verified)

What is 3/4 divided by 2/3?
A) 9/8
B) 5/12
C) 5/7
D) 6/7 – CORRECT ANSWER: 9/8

A county park has hiking paths with lengths of 1.05, 3.6, 3.17, and 2.2 miles.

What is the total length, in miles, of hiking paths in the park?
A) 9.02 miles
B) 10.02 miles
C) 10.12 miles
D) 11.2 miles - CORRECT ANSWER: 10.02 miles

If there are 2 tablespoons in 1 fluid ounce, how many tablespoons does the following
calculation yield?

4 fl oz - CORRECT ANSWER: 1.5 tbsp

0.5 tbsp
1 tbsp
2.5 tbsp
6.5 tbsp - CORRECT ANSWER: 6.5 tbsp

Solve for X:
X - 5/4 = 2/3
A) 3/12
B) 7/12
C) 10/12
D) 23/12 - CORRECT ANSWER: 23/12

Solve for X:
X+5/3=2/3
A) -3
B) -1
C) 1
D) 3 - CORRECT ANSWER: -1

Given the inequality:
2y + 6 > 20
Which graph is the solution?

,A) {{ y < 3 }}
B) {{ y > 6 }}
C) {{ y > 7 }}
D) {{ y < 7 }} - CORRECT ANSWER: {{ y > 7 }}

Which graph is the solution for y < 8?
A) {{ unfilled circle on 8, arrow pointing left }}
B) {{ filled circle on 8, arrow point left }}
C) {{ unfilled circle on 8, arrow pointing right }}
D) {{ filled circle on 8, arrow point right }} - CORRECT ANSWER: {{ unfilled circle on
8, arrow pointing left }}

Which graph is the solution for 4y - 6 > 18?
A) {{ y > 4 }}
B) {{ y > 6 }}
C) {{ y < 4 }}
D) {{ y < 6 }} - CORRECT ANSWER: {{ y > 6 }}

What is the correct line graph for y = 3x + 5?
A) (0,5) to (2,11)
B) (0,-5) to (2,-11)
C) (0,3) to (2,5)
D) (0,3) to (2,-7) - CORRECT ANSWER: (0,5) to (2,11)

What is the correct line graph for y = - CORRECT ANSWER: 2x + 9?
A) (0,9) to (4.5,0)
B) (0,9) to (3,0)
C) (0,-9) to (5,-19)
D) (0,-9) to (5,-24) - CORRECT ANSWER: (0,9) to (4.5,0)

A normally distributed data set has a mean of 25 and a standard deviation of 2.

Which percentage of the data falls between 23 and 25?

A) 34.0
B) 68.0
C) 95.0
D) 99.7 - CORRECT ANSWER: 34.0

A given data set is normally distributed with a mean of 200 and a standard deviation
of 5.

Which two values does 95% of the data fall between?

A) 180-220
B) 185- CORRECT ANSWER: 225

, C) 190-210
D) 195-235 - CORRECT ANSWER: 190-210

In a statistics class, 40 students are asked to write their age on a piece of paper and
place the paper in a box. After rotating and shaking the box, 5 pieces of paper are
drawn from the box at random. The data results are as follows:

36
22
21
20
19

What is the median for this data set?

A) 17
B) 21
C) 24
D) 28 - CORRECT ANSWER: 21

A new video gaming site wants to know what the median age is of its adolescent
population so they can focus on activities for these clients. A data analyst recorded
the ages of 12 adolescents who used the site over a three-month period. The results
are given below:

Age ,Frequency
13 ,1
16 ,2
17 ,2
18 ,3
19 ,4
What is the median age of the adolescents?

A) 17.0
B) 17.2
C) 18.0
D) 18.6 - CORRECT ANSWER: 18.0

The graph shows a company's profits, in thousands of dollars, for five different
regions:

{{
Y = Profits in Thousands of Dollars
X=ABCDE
A = 29
B = 34