Sample of 3 items is selected at random from a box containing 20 items of which 4 aredefective. find the expected number of defective items in the sample.

Empty set is finite or not

Change equation into standard form y=1/5x-1

What is the value of x? 3x/4x = 3x+7/5x-8

What is the answer to multiplying 2/5*5/7*1/2

Use a property to write an equivalent expression for 12 times (100-5). which property did you use?

What is the answer to 7+6 / (-7+9) ^2

What is the greatest possible error for a measurement of 25 gallons

Maya uses blue and orange fabric to make identical wall decorations. The graph below shows the relationship between the amounts of blue and orange fabric used. (0.7, 0,3). What is the constant of proportionality? A:3/10, B:2/5, C: 3/7, D:1/2.

To be considered similar similar, two polygons must have corresponding side that are what?

Determine which of the following pairs of events are dependent. a) A: It rains today. B: Your favorite television show is on. b) A: You cook your chicken improperly. B: You get salmonella poisoning. c) A: The power goes out.