CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
Using assumed mean 49, the deviations of five observations are -6, -2, 1, 3, 3. What is the actual mean?
A. 50.8
B. 48.8
C. 47.8
D. 49.8
Correct Answer: B
Actual mean = assumed mean + average deviation = 48.8.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
Using assumed mean 48, the deviations of five observations are -5, -2, 1, 3, 5. What is the actual mean?
A. 47.4
B. 49.4
C. 50.4
D. 48.4
Correct Answer: D
Actual mean = assumed mean + average deviation = 48.4.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
Using assumed mean 47, the deviations of five observations are -6, -2, 1, 3, 4. What is the actual mean?
A. 47
B. 49
C. 48
D. 46
Correct Answer: A
Actual mean = assumed mean + average deviation = 47.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
Using assumed mean 46, the deviations of five observations are -5, -2, 1, 3, 3. What is the actual mean?
A. 47
B. 48
C. 46
D. 45
Correct Answer: C
Actual mean = assumed mean + average deviation = 46.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
Using assumed mean 45, the deviations of five observations are -6, -2, 1, 3, 5. What is the actual mean?
A. 45.2
B. 46.2
C. 47.2
D. 44.2
Correct Answer: A
Actual mean = assumed mean + average deviation = 45.2.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
Using assumed mean 44, the deviations of five observations are -5, -2, 1, 3, 4. What is the actual mean?
A. 43.2
B. 45.2
C. 46.2
D. 44.2
Correct Answer: D
Actual mean = assumed mean + average deviation = 44.2.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
Using assumed mean 43, the deviations of five observations are -6, -2, 1, 3, 3. What is the actual mean?
A. 41.8
B. 42.8
C. 44.8
D. 43.8
Correct Answer: B
Actual mean = assumed mean + average deviation = 42.8.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
Using assumed mean 42, the deviations of five observations are -5, -2, 1, 3, 5. What is the actual mean?
A. 43.4
B. 42.4
C. 41.4
D. 44.4
Correct Answer: B
Actual mean = assumed mean + average deviation = 42.4.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
Using assumed mean 41, the deviations of five observations are -6, -2, 1, 3, 4. What is the actual mean?
A. 40
B. 42
C. 41
D. 43
Correct Answer: C
Actual mean = assumed mean + average deviation = 41.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
Using assumed mean 40, the deviations of five observations are -5, -2, 1, 3, 3. What is the actual mean?
A. 42
B. 39
C. 41
D. 40
Correct Answer: D
Actual mean = assumed mean + average deviation = 40.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of a dataset is 34. Each value x is transformed to 3x + 7. What is the mean of the transformed dataset?
A. 107
B. 111
C. 109
D. 113
Correct Answer: C
New mean = 3×34+7 = 109.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of a dataset is 33. Each value x is transformed to 2x + 6. What is the mean of the transformed dataset?
A. 74
B. 70
C. 76
D. 72
Correct Answer: D
New mean = 2×33+6 = 72.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of a dataset is 32. Each value x is transformed to 5x + 5. What is the mean of the transformed dataset?
A. 169
B. 163
C. 165
D. 167
Correct Answer: C
New mean = 5×32+5 = 165.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of a dataset is 31. Each value x is transformed to 4x + 4. What is the mean of the transformed dataset?
A. 126
B. 128
C. 130
D. 132
Correct Answer: B
New mean = 4×31+4 = 128.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of a dataset is 30. Each value x is transformed to 3x + 3. What is the mean of the transformed dataset?
A. 95
B. 97
C. 91
D. 93
Correct Answer: D
New mean = 3×30+3 = 93.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of a dataset is 29. Each value x is transformed to 2x + 7. What is the mean of the transformed dataset?
A. 69
B. 67
C. 63
D. 65
Correct Answer: D
New mean = 2×29+7 = 65.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of a dataset is 28. Each value x is transformed to 5x + 6. What is the mean of the transformed dataset?
A. 150
B. 148
C. 146
D. 144
Correct Answer: C
New mean = 5×28+6 = 146.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of a dataset is 27. Each value x is transformed to 4x + 5. What is the mean of the transformed dataset?
A. 117
B. 113
C. 111
D. 115
Correct Answer: B
New mean = 4×27+5 = 113.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of a dataset is 26. Each value x is transformed to 3x + 4. What is the mean of the transformed dataset?
A. 82
B. 84
C. 86
D. 80
Correct Answer: A
New mean = 3×26+4 = 82.
CSS - PMS - CCE - PCS - Mathematics
Average / Arithmetic Mean
The mean of a dataset is 25. Each value x is transformed to 2x + 3. What is the mean of the transformed dataset?
A. 55
B. 51
C. 57
D. 53
Correct Answer: D
New mean = 2×25+3 = 53.