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Unit 15 & 16 Assessment Flashcards | StudBud
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Unit 15 & 16 Assessment
Unit 15 & 16 Assessment
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Questions
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Answers
1
How do we calculate the residual?
Actual - Predicted
Prdicted - Actual
2
The probability of red marble from a bag is 3/15. What is the probability that I won’t draw a red marble from a bag?
12/15
2/15
3/15
10/15
3
If P(A|B) = P(A) then the probability is
Not Independent
Independent
4
Probability of Not Mutually Exclusive
P(A or B) = P(A) + P(B)
P(A or B)=P(A)+P(B)-P(A&B)
P(A & B)=P(A)*P(B|A)
P(A&B)=P(A)*P(B)
5
What is the expoential regression formula?
y = ab + x
y = a * x ^ b
y = a * b ^ x
y = ax + b
6
P(A|B) = P( A and B) / P(B)
True
False
7
What is the probability P(Algebra 2 or Chemistry)?
23/29
14/29
19/29
11/29
8
Probability is greater than 1.
False
True
9
0.9999 suggest a
Strong Negative Correlation
Weak Negative Correlation
Weak Positive Correlation
Strong Positive Correlation
10
Find the standard deviation.
3.89
3.79
3.69
3.59
11
What is in the five number Summary?
Q1, Median, Q3, Max, Min
Q1, Mean, Median, Q3, Mode
Mean, Median, Mode, Min, Max, Range
Mean, Q1, Q2, Q3, Range
12
What letter represent the correlation coefficient?
r^2
y
r
x
13
Find three standard deviation from the mean.
11.07
11.67
11.37
10.77
14
SAT math scores has a mean of 511 and standard deviation of 110. Find the Z score for someone who score 450.
0.55
-0.24
-0.55
0.24
15
Probability of Mutually Exclusive
P(A or B) = P(A) + P(B)
P(A&B)=P(A)*P(B)
P(A or B)=P(A)+P(B)-P(A&B)
P(A then B)=P(A)*P(B after A)
16
Formula for Interquartile Range:
Q3-Q1
Q3 + Q1
Q2 - Q1
Q2 + Q1
