Choose a person aged 19 to 25 years at random and ask, "In the past seven days, how many times did you go to an exercise or fitness center or workout?" Let Y be the number of days worked out. Below is the probability distribution of Y. Fill in the chart.

What is the mean number of days worked out?

Calculate and interpret the standard deviation of Y.

Nscience we assume that the force of gravity behaves the same way beyond earth. using this assumptions, we can use the gravitational forces from the sun and moon to explain a: the tides b: a lunar eclipse c: the length of a day d: the revolution of the earth hurry i am timed : ) will give brainliest

Which of the following types of stars had the smallest initial mass? which of the following types of stars had the smallest initial mass?

"[because of the emancipation proclamation] the condition of things [became] … unsettled, revolutionary, with nothing clearly defined, neither slave nor slaveholder having any rights which they felt bound mutually to respect … slave property in the state of missouri was almost a dead weight to the owner; he could not sell because there were no buyers."—h.c. bruce, a former slave in missouri what does this excerpt suggest about the effects of the emancipation proclamation? a. it also undermined slavery in the border states despite not being in effect there.b. it caused complete disintegration of southern society in the states that seceded.c. it led to slave owners not even trying to stop their slaves from leaving the farms.d. it prevented riots or chaos as both owners and slaves simply ignored each other.