(08.01)angela wants to know how many families in her neighborhood plan to attend the parade. she puts all 120 of the neighborhood addresses in a hat and draws a random sample of 30 addresses. she then asks those families if they plan to attend the parade. she finds that 40% of the families plan to attend the parade. she claims that 40% of the neighborhood families would be expected to attend the parade. is this a valid inference?
yes, this is a valid inference because the 30 families speak for the whole neighborhood
yes, this is a valid inference because she took a random sample of the neighborhood
no, this is not a valid inference because she did not take a random sample of the neighborhood
no, this is not a valid inference because she asked only 30 families

Ineed with this math problem p(65)=500×1.0325*65 the star means that you have to times it like 1.0325×1.0325?

Pam buys a sleeve of ball bearings for her skateboard. each of the bearings is 1 1/5 inches wide. the sleeve is 9 3/5 inches long. how many ball bearings are in the sleeve? show your work.

High school seniors with strong academic records apply to the nation’s most selective colleges in greater numbers each year. because the number of slots remains relatively stable, some colleges reject more early applicants. suppose that for a recent admissions class, an ivy league college received 2851 applications for early admission. of this group, it admitted 1033 students early, rejected 854 outright, and deferred 964 to the regular admission pool for further consideration. in the past, this school has admitted 18% of the deferred early admission applicants during the regular admission process. counting the students admitted early and the students admitted during the regular admission process, the total class size was 2375. let e, r, and d represent the events that a student who applies for early admission is admitted early, rejected outright, or deferred to the regular admissions pool.suppose a student applies for early admission. what is the probability that the student will be admitted for early admission or be deferred and later admitted during the regular admission process?