Aresearcher is using a chi-square test to determine whether people have any preferences among three brands of televisions. the null hypothesis for this test would state that
answer
a. in the population, one brand is preferred over the other two
b. one-third of the population prefers each brand
c. there are real preferences in the population
d. one-third of the sample prefers each brand

What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )

Solve the triangle. a = 21°, c = 105°, c = 5

70 points ! pls 2. given the following two sets of data what is the union of the two sets and what is the intersection of the two sets. set a = {1, 2, 3, 4, 5, 6, 7, 8, 9} set b = {2, 4, 6, 8, 10, 12, 14} 3. given a regular deck of cards. describe a way of pulling cards that would create a dependent event and then one that would create an independent event. 4. what is the probability of drawing a red card and then drawing a spade without replacing the card that was drawn first?