Determine whether the given value is a statistic or a parameter.

A health and fitness club surveys 40 randomly selected members and found that the average weight of those questioned is 157 lb.

The given value is a statistic.

Step-by-step explanation:

We are given the following information in the question:

"A health and fitness club surveys 40 randomly selected members and found that the average weight of those questioned is 157 lb"

Statistic:

A statistic is a numeric value that describes a sample.

Parameter:

A parameter is a value that describes the population.

Since, 157 lb is average weight of 40 randomly selected members which is a sample, thus, the given value here is a statistic describing a sample.