Holistic Numerical Methods Institute
committed to bringing numerical methods to undergraduates
Multiple Choice Test
Background on Regression
Q1. The average and standard deviation of the following numbers: 2, 4, 10, 12, 1.6, 6.4 are
6.0, 4.0857
6.0, 4.2783
7.2, 4.0857
7.2, 4.4757
Q2. The average of 7 numbers is given 12.6. If 6 of the numbers are 5, 7, 9, 12,17 and 10, the remaining number is
-47.9
-47.4
15.6
28.2
Q3. The average and standard deviation of 7 numbers is given a 8.142 and 5.005, respectively. If 5 numbers are 5, 7, 9, 12 and 17, the other two numbers are
-0.1738, 7.175
3.396, 12.890
3.500, 3.500
4.488, 2.512
Q4. The sum of the square of the difference between data point and its average for the data 2, 5, 10, 12, 2.5, 6.7 is
4.023
13.49
16.19
80.93
Q5. Two medications are tried to heal esophageal ulcers in patients. The time to heal is reported as the time the patient reports 1 or less heartburn episode per week.
Pacalo
Reggon
26
25
23
31
21
32
19
37
The medication with less recovery time with standard deviation and mean is
Pacalo,
Reggon,
Q6. A very large number of data points are chosen on a function y=3e2x from x=0.2 to 2.1. The average of these y values most nearly is
51.5
78.2
97.8
102
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