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Probability and Statistics
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Probability and Statistics
18 terms
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18 cards
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Questions
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Answers
1
Look below:
9/10
99.7%
1
79.72%
2
Look at image below:
33%
40%
10%
1/2
3
Consider the following sets: A={2,5,7,8,4} B={5,8,11,23}. Find A/B.
{2,5,7,8,4,11,23}
{11,23}
{2,7,4}
{5,8}
4
Look Below:
z = 3.21 ; yes
z = 0.5 ; yes
z = 3.21 ; no
z = -1.7 ; no
5
Find the probability that a student is male OR a non-nursing major.
2880/3605
93.2%
25.6%
100%
6
Find the equation of the regression line for the age and hours slept of six infants:
y = -1.27x + 14.78
y= -2.01x +3.5
y = mx + b
y = 1.34x - 1.2
7
Find r
2
for the following data set. What percent of the variation can be explained?
-0.86 ; 14%
0.9 ; 90%
0.74 ; 26%
0.74 ; 74%
8
Which data set has a correlation coefficient of -0.93?
A
C
B
9
Look Below:
248,832
792
95,040
60
10
Look Below:
45%
74.3%
91%
62.4%
11
A={17,22,34,48} B={22,48,53,97}. Find A∩B.
{34,48}
{22,48}
{53,97}
{17,22,34,48,53,97}
12
Is the following a probability distribution?
Yes
No
13
C={1,4,6,8} D={2,6,9}. Find C⋃D.
{1,2,4,6,8,9}
{6}
{1,4,8}
{2,9}
14
Look below:
3 cm
103 cm
18 cm
106 cm
15
What percent of the students scored 30 or higher on the quiz?
66%
75%
80%
25%
16
Look Below:
60,339,831,552,000
240
32
125,970
17
Look Below:
$2.33
- $1.92
$0.34
- $2.99
18
Find the mean of the discrete random variable x.
6
6.4
7.1
0.2
