STA301 Quiz 2 Nov 2025

Quiz 1 - STA301

Question:

When the union of mutually exclusive events is equal to entire sample space, it is called:

A. Equally likely events

B. Mutually exclusive events

C. Exhaustive events D. Random events Copied: 11/27/2025, 11:31:50 AM

Quiz 2 - STA301

Question:

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Quiz 3 - STA301

Question:

In simple linear regression, which of the following statements indicates there is no linear relationship between the variables x and y?

1. Coefficient of determination is -1.0
2. coefficient of correlation is 0
3. none of the above
4. sum of square of errors is 0

Correct answer: coefficient of correlation is 0

Copied: 11/27/2025, 11:33:16 AM

Quiz 4 - STA301

Question:

In a five number summary, which of the following is not used for data summarization?

1. the 25th percentile
2. the mean
3. the largest value
4. the smallest value

Correct answer: the mean

Copied: 11/27/2025, 11:33:51 AM

Quiz 5 - STA301

Question:

If median<mid-quartile range<midrange then distribution will be:

A. Zero skewed B. Negatively skewed

C. Positively skewed

D. Symmetrical

Copied: 11/27/2025, 11:34:30 AM

Quiz 6 - STA301

Question:

Co-efficient of standard deviation multiplied by 100 gives:

A. Co-efficient of variation

B. Co-efficient of difference C. Absolute measure D. All are correct Copied: 11/27/2025, 11:34:52 AM

Quiz 7 - STA301

Question:

When an event is as likely to occur as other, it is called:

A. Mutually exclusive event

B. Equally likely event

C. Normal event D. Not mutually exclusive event Copied: 11/27/2025, 11:35:08 AM