STA301 Quiz 2 Nov 2025 Set 2

Quiz 1 - STA301

Question:

There are 30 people in a group. If all shake hands with one another , how many handshakes are possible?

1. 435
2. 291
3. 870
4. 370

Correct answer: 435

Copied: 11/27/2025, 11:37:36 AM

Quiz 2 - STA301

Question:

A five-number summary consists of:

A. Xm, Q1, Mean, Q3, and X0 B. Xm, Q1, Mode, Q3, and X0 C. X0, Q1, Median, Q2, and Xm

D. X0, Q1, Median, Q3, and Xm

Copied: 11/27/2025, 11:37:47 AM

Quiz 3 - STA301

Question:

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�A�.� �B� �=� ¦

�B�.� �A� �=� ¦

�C�.� �A� "`� �B

D. A = B

Copied: 11/27/2025, 11:38:00 AM

Quiz 4 - STA301

Question:

For a particular data set the Pearson’s coefficient of skewness is greater then zero. What will be the shape of distribution?

1. None of the above
2. Symmetrical
3. Positively Skewed
4. Negatively Skewed

Correct answer: Positively Skewed

Copied: 11/27/2025, 11:38:13 AM

Quiz 5 - STA301

Question:

Which of the following measures based on all observations?

1. Standard deviation
2. Mean deviation
3. None of these
4. Mean deviation and Standard deviation

Correct answer: Standard deviation

Copied: 11/27/2025, 11:38:25 AM

Quiz 6 - STA301

Question:

By using method of least square in a linear regression, sum of square of the vertical distances between the points and fitted line is always:

A. Minimum

B. Zero C. All of these D. Maximum Copied: 11/27/2025, 11:38:36 AM

Quiz 7 - STA301

Question:

P(event)= No. of favorable outcomes/total no. of outcomes is a definition of:

A. Objective Approach

B. Binomial event C. Subjective Approach D. Normal event Copied: 11/27/2025, 11:38:47 AM

Quiz 8 - STA301

Question:

The standard deviation of c (constant) is equal to: