You must keep in mind that people is plural for person; it is signifying that we are talking about more then just one person. Therefore, for your subject-verb agreement is correctly portrayed in the second model. "There are a good number of people who believe that infidelity is a common tendency."
i just used common defense in a sentence
The common nouns in your sentence are: conclusion and experiment.
The common nouns in the sentence are necklace and overcoat.
The common nouns in the sentence are mother and alternative.
The common nouns in this sentence is the crew, supplies, and ship. There are no proper nouns in your sentence.
Prostitution and infidelity
Infidelity
objects that are in a common area or region as being in a group
Common measures of central tendency are the mean, median, mode. Common measures of dispersion are range, interquartile range, variance, standard deviation.
The answer is outlier
She dismissed his speech as nothing more than twaddle filled with empty words and meaningless platitudes.
i just used common defense in a sentence
Alexis de Tocqueville
The common nouns in the sentence are:houseschool
Mean or average is the most common measure of central tendency of a sample.
average
That's a common error.