Question 4. Answer in True or False. a)An ogive is a frequency polygon graph of the...

Question 4. Answer in True or False.

a)An ogive is a frequency polygon graph of the cumulative frequency or the relative cumulative frequency with the horizontal axis marked at the midpoints and the vertical axis is the frequency or relative frequency.

b)The coefficient of determination measures the strength of the relationship between the two variables in simple linear regression.

c)Two mutually exclusive events will have a joint probability of one.

Expert Solution

The answers are:

a)

An ogive is a frequency polygon graph of the cumulative frequency or the relative cumulative frequency with the horizontal axis marked at the midpoints and the vertical axis is the frequency or relative frequency.

b)

The correlation coefficient and not coefficient of determination measures the strength of the relationship between the two variables in simple linear regression.

c)

Two mutually exclusive events cannot occur together. However, that does not make them exhaustive. There can be more events too. So not necessarily their sum is equal to 1.

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orchestra answered 2 years ago

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