wgu c955 probability and statistics objective asse
wgu c955 objective assessment exam
wgu c955 objective assessment
c955 objective assessment exam
Written for
WGU C955
WGU C955
5
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By: freddy62873 • 4 months ago
Total Scam. This is the PA not the OA.
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By: LectJohn • 8 months ago
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By: LectJohn • 4 months ago
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By: jahschro • 1 year ago
By: LectJohn • 1 year ago
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WGU C955 Applied Probability and Statistics
Objective Assessment Exam
Questions and Revised Answers, 100% Guarantee Pass
This test consisting of 70 multiple-choice ques with Ans
1. Consider the expression below.What is the solution rounded to the nearest
hundredth?
(0.625 - 0.301) * 0.21
a) 0.07
b) 0.068
c) 0.06
d) 0.06804: 0.06084
b. 0.068 ( rounded to the hundredth place)
,2. If 1 pound = 16 ounces, how many pounds are in 42 ounces? a) 0.38
b) 672
c) 2.62
a) 2.63: d: 2.63 ( = 2.625 = 2.63 rounded to the nearest hundredth place)
3. Solve for x in the following equation: x -
1/4 = 5/6
a) 13/12
b) 7/12 c)
12/13
d) 1/2: 13/12
x - 1/4 = 5/6
+ 1/4 + 1/4
x = 1/4 + 5/6
x = 10/12 + 3/12
a: x = 13/12
4. Consider the inequality:
9 + 4x > 3 (2x - 1)
Which of the following graphs represent the solution?
a) x < 5 (open circle at 5 and arrow to the left)
b) x > 5 (open circle at 5 and to the right)
c) x < 6 (open circle at 6 and to the left)
,d) x > 6 (open circle at 6 and to the right): 9 + 4x > 3 * (2x - 1) 9 + 4x
> 6x - 3
-9 -6x -6x -9
(4x - 6x) > -3 -9
-2x > -12
-2x/-2 > -12/-2
x < 6 (switched the sign in the opposite direction since we are dividing by a negative
number)
c: (open circle at 6 and to the left)
,5. Consider the inequality:
-2x + 3 < -5
Which of the following graphs represents the solution?
a) x < 4 (open circle at 4 and to the left)
b) x less than or equal to 4 (solid circle at 4 b/c the 4 is included and to the left)
c) x > 4 (open circle at 4 and to the right)
d) x greater than or equal to 4 (solid circle at 4 b/c the 4 is included and to the right): -2x
+ 3 < -5
-3 -3
-2x < -8
-2x/-2 < -8/-2
x > 4 (switched the sign in the opposite direction since we are diving by a negative
number)
c: (open circle at 4 and to the right)
6. What is the equation of the line in the graph shown?
a) y = 2x + 4
b) y = 4x + 2
c) y = -2x + 4
d) y = 6x + 4: y-int: 4
slope (m): -2 (rise: -2, run: 1) a. y
= -2x + 4
,7. What is the equation of the line in the graph shown?
a) y = 2x + 2
b) y = x + 2
c) y = -x + 2
d) y = -2x + 2: y-int: 2 slope(m): 2
(rise: 2, run: 1)
a. y = 2x + 2
graph two points (x: 0, y: 2) (x: 1, y: 4)
8. Which of the following graphs represents the inequality: y less
than or equal to -3x + 4
a) (dashed line to indicate the 2 is not included, shaded to the right)
b) (solid line to indicate the x-axis is included, shaded to the left)
c) (dashed line to indicate the 2 is not included, shaded to the right)
d) (solid line to indicate the x-axis is included, shaded to the left): d: (solid line to
indicate the x-axis is included, shaded the left)
,9. A normally distributed data set has a mean of 28 and a standard deviation
of 4. What percent of the data falls between 20 and 28? a) 68%
b) 95%
c) 99.7%
d) 47.5%: create a number line (x-axis) w/ a standard deviation of 4 (4 spaces in between
the numbers from the median)
16, 20, 24, 28, 32, 36, 40
68%: 24-32
95%: 20-36
99.7%: 16-40
half of 95% is 47.5% which represents (20-28)
d: 47.5%
10. What is the inequality corresponding to the graph? a) y >
1/3x + 6
b) y < 1/2x - 3 c)
y > 1/2x - 3
d) y < 1/3x + 6: b: (y < 1/2x - 3) (dashed line to indicate the x-axis plot (6) is not included,
shaded to the left)
11. Students test scores in an Applied Statistics courses are normally distrib- uted with a
mean of 75 and standard deviation of 5. What percent of the data falls below 60?
a) 0.15%
b) 1.5%
, c) 2.5%
d) 16%: create a number line (x-axis) w/ a standard deviation of 5 (5 spaces in
between the numbers from the median)
55, 60, 65, 70, 75, 80, 85, 90, 95
68%: 70-80
95%: 65-85
99.7%: 55-95
below 60 represents 0.30%; 0.15% is represented on the left side and 0.15% on the right
side
a. 0.15%
12. Athletes' heart rates were recorded after doing one minute one jumping jacks.
The results were recorded in the shown frequency table. What is the median heart
rate?
Heart rate (bpm) Frequency 66 1
86 4
99 3
121 2
124 2
129 3
138 1
a) 121
b) 110
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