A random sample of people is chosen to participate in a survey. For the survey results to be considered valid, which must be true of the random sample?

The sample must represent the target population.

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

How does a low unemployment rate affect a nation's economy? a. the nation has a higher number of productive resources. b. the nation can spend more money on for unemployed people. c. the nation can save money by paying lower salaries to a large workforce. reset

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.