Calculating Standard Deviation Concepts

The video tutorial covers Chapter 8 on statistics and probability, focusing on example 8.6. It begins with an introduction to the topic and lists the marks scored by 10 students in a class test. The tutorial then guides viewers through the process of calculating the standard deviation, including finding the mean, summing and squaring differences, and performing the final calculation. The standard deviation is determined to be approximately 6.67. The video concludes with a summary of the steps and the final result.

What is the main topic discussed in this video tutorial?

• Calculus

• Statistics and Probability

• Geometry

• Algebra

How many students' marks are considered in the example?

• 5

• 10

• 15

• 20

What is the first step in calculating the standard deviation?

• Finding the mean

• Calculating the median

• Identifying the mode

• Listing the data

What is the mean of the marks scored by the students?

• 30

• 45

• 35

• 40

What is the deviation of the mark 29 from the mean?

• -6

• -5

• -4

• -3

What is the deviation of the mark 48 from the mean?

• 13

• 12

• 10

• 11

What is the deviation of the mark 35 from the mean?

• 0

• 3

• 2

• 1

What is the squared deviation of the mark 40 from the mean?

• 50

• 25

• 10

• 5

What is the sum of the squared deviations?

• 200

• 100

• 300

• 453

What is the squared deviation of the mark 33 from the mean?

• 25

• 9

• 4

• 16