Team 1
0
Team 2
0
Teams
Name
Score
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Loading
×
trap
No points!
Oops!
×
shark
Other team loses 25 points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
banana
Go to last place!
Oops!
25
×
b) ii
P(50 <= X <= 60) = 0.0931
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Check
Okay!
Check
15
×
Find k.
k = 0.23
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Okay!
Check
15
×
Find E(X).
E(X) = 2.1
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Okay!
Check
15
×
Find the probability that Sally has between 1 and 3 hits in the game, inclusive.
P(1 <= X <= 3) = 0.83
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Check
Okay!
Check
10
×
a) i
Naomi
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Okay!
Check
15
×
Is the following a valid probability mass function? Why?
Yes
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Okay!
Check
10
×
What is the mode?
3 hits is the mode
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Check
Okay!
Check
×
boom
Lose 50 points!
Oops!
×
fairy
Take points!
5
10
15
20
25
×
fairy
Take points!
5
10
15
20
25
×
baam
Lose 25 points!
Oops!
10
×
How do we find Pearson's correlation coefficient?
LinReg()
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Check
Okay!
Check
25
×
If X ~ B(9, 0.65), find P(X > 6)
0.3373
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Okay!
Check
15
×
What is the median?
the median is 3 hits
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10
×
State clearly what the random variable represents.
X represents the number of hits that Sally has in a softball match. X= 0, 1, 2, 3, 4, 5
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Okay!
Check
×
heart
Other team wins 15 points!
Oops!
×
magnet
Take 15 points!
Okay!
×
rocket
Go to first place!
Okay!
×
baam
Lose 25 points!
Oops!
×
trap
No points!
Oops!
×
magnet
Take 5 points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
thief
Give points!
5
10
15
20
25
20
×
If X ~ B(19, 0.85) find P(X âĪ 11)
0.0041
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Check
Okay!
Check
×
Restart
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