ACET (Actuarial Common Entrance Test) Statistics: Questions 25 - 32 of 201
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Question 25
Question
MCQ▾Weakly pocket money of 6 students are noted as:
₹80, ₹70, ₹90, ₹100, ₹500, ₹50. Find out range.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | ₹ 30 | |
| b. | ₹ 450 | |
| c. | ₹ 100 | |
| d. | ₹ 400 | |
Question 26
Question 27
Question 28
Question 29
Question
MCQ▾The arithmetic mean of is 6. The value of X is
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 10 | |
| b. | 11 | |
| c. | 12 | |
| d. | Question does not provide sufficient data or is vague | |
Question 30
Question
MCQ▾The standard deviation of X and Y are 4 and 5 respectively. The correlation coefficient between them is 0.8. Find the regression coefficient of Y on X.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | ||
| b. | ||
| c. | ||
| d. | 1 | |
Question 31
Question
MCQ▾Which of the following methods uses covariance in calculating correlation coefficient?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Spearman’s Rank Correlation | |
| b. | Concurrent Deviation | |
| c. | Karl Pearson’s Coefficient of Correlation | |
| d. | Question does not provide sufficient data or is vague | |
Question 32
Question
MCQ▾The probability that a student will pass the first examination is 0.8 and the probability of passing the second examination is 0.7. The probability of passing at least one of them is 0.95. What is the probability of his passing both the examinations?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 0.55 | |
| b. | 0.42 | |
| c. | 1 | |
| d. | 0.63 | |