kingriley2285 kingriley2285

18-07-2017
Mathematics

contestada

A box contains 5 red and 5 green marbles. if 5 marbles are drawn without replacement, what is the expected number of red marbles

Respuesta :

22-07-2017

P( 5 reds, 1 green) = 6C3*P(drawing the red ones 1st, 2nd, 3rd 4th) = 6C5(5/10)(4/9)(3/8)(2/7)(1/6)(5/5) = 1/42

Answer Link

Otras preguntas

determine whether a tangent is shown in the diagram, Yes or No?

For every 16 litres of petrol a car can run for 80 km. How much petrol do you need to ensure the car has enough petrol of a trip that is 210 km?

If you doubled the volume of a sample of gas and then double the volume again without changing its pressure how would the absolute temp of the gas be affected

Li transformed rectangle ABCD the image is shown does Li’s transformation represent a translation

Pedro baja del segundo piso al

Which is most likely to be damaged by acid rain

In which of the following countries do a majority of the people practice Christianity? A. Indonesia B. India C. Thailand D. the Philippines Please select the be

Why didn’t US open a trading route to China until after the war

List as many different uses as you can for plane, convex and concave mirrors.

Three-year-old Ben and his father are playing with a ball at the park. Ben's father throws a ball high up into the air. Ben thinks the ball will never come back