Give an example of one point that satisfies the restrictions of Danna's purchases and one that does not satisfy the restrictions. Interpret the meaning in the context of the situation being modeled. Explain your answer.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? 0.62 0.78 0.84 0.96

Which situation is an example of an observational study?