MATH 221 Week 5 Quiz (v3) | Highly RATED Paper | 100% correct answers
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Course
MATH 221
Institution
Devry University
MATH 221 Week 5 Quiz (v3) Question: (CO 3) Consider the following table. If you … the probability distribution for these data, what would … the probability of 30-39? Question: (CO 3) Consider th e following table of hours worked by part-time employees. These employees must work in 5-hour blocks...
question co 3 consider the following table if you … the probability distribution for these data
what would … the probability of 30 39
question co 3 consider the following table of hours worke
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MATH 221
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MATH 221 Week 5 Quiz (v3)
Question 1
(CO 4) Consider the following table:
Age Group Frequency
18-29 983
30-39 784
40-49 686
50-59 632
60-69 541
70 and over 527
If you created the probability distribution for these data, what would be the probability of 50-59?
0.152
If you created the probability distribution for these data, what would be the probability of 30-39?
0.189
Question 2
(CO 4) Consider the following table of hours worked by part-time employees. These employees must
work in 5 hour blocks.
Weekly hours
Probability
worked
5 0.06
15 0.23
20 0.18
25 0.53
Find the mean of this variable.
20.60
(CO 4) Consider the following table of hours worked by part-time employees. These employees must
work in 5 hour blocks.
, MATH 221 Week 5 Quiz (v3)
We
ekly
hou Proba
rs bility
wor
ked
5 0.15
15 0.28
20 0.31
25 0.26
Find the mean of this variable.
17.65
Question 3
(CO 4) Consider the following table.
Defects in batch Probability
0 0.30
1 0.28
2 0.21
3 0.09
4 0.08
5 0.04
Find the variance of this variable.
1.99
(CO 4) Consider the following table.
Defects in batch Probability
0 0.21
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