WGU C955 Pre- Assessment (Latest 2023/ 2024 Update) Applied Probability and Statistics| Questions and Verified Answers| 100% Correct| Grade A

WGU C955 Pre- Assessment (Latest 2023/

2024 Update)Applied Probability and

Statistics| Questions and Verified Answers|

100% Correct| Grade A

Q: 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)

Answer:

(0,5) to (2,11)

Q: What is the correct line graph for y = -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)

Answer:

(0,9) to (4.5,0)

Q: 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

Answer:

34.0

Q: 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) 185-225

C) 190-210

D) 195-235

Answer:

190-210

Q: 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

Answer:

21

Q: 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

Answer:

18.0

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

{{

Y = Profits in Thousands of Dollars

X = A B C D E

A = 29

B = 34

C = 15

D = 40

E = 22

}}

Based on this graph, what is the closest approximate total profit (in thousands) for all five

regions?

100

140

170

200

Answer:

140

Q: The bar chart below summarizes the final grade distribution for a statistics course: