Question 1

The marks obtained by 5 students in a test are: 45, 52, 48, 52, 63. What is the median of their marks?

Accepted Answer

Step 1: Arrange the marks in ascending order: 45, 48, 52, 52, 63. Step 2: Since there are 5 values (odd number), the median is the middle value, which is the 3rd value. Step 3: The 3rd value is 52. Therefore, the median is 52.

Question 2

In a dataset of 8 observations, the mode is 15 and it appears 4 times. Which of the following statements is definitely true?

Accepted Answer

Step 1: The mode is the value that appears most frequently in a dataset. Step 2: If 15 is the mode and appears 4 times, then no other value can appear 4 or more times. Step 3: This means 15 appears more frequently than any other value. Step 4: Therefore, 15 is the most frequently occurring value in the dataset. The correct statement is that 15 appears more frequently than any other value.

IBPS RRB PO Statistics Questions

IBPS RRB PO Statistics — Past Exam Questions

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