libbyfisher11111 libbyfisher11111

01-02-2021
Mathematics

contestada

A and B are two mutually exclusive events.
P(A) = 0.3 and P(A or B) = 0.7
Work out the value of P(B).

Respuesta :

reguser315 reguser315

01-02-2021

If the events are mutually exclusive, then P(B)=P(A or B)-P(A). This is 0.7-0.3, which is 0.4.

Answer Link

Otras preguntas

Which of the following is the best example of step migration? a. movement from a harsh climate zone to another climate zone b. migration from one continent to

Etymology is the study of insects. a. True b. False

Solve. Q - 7 5/6 = 6 1/2

Which of the following issues became an obstacle to the drafting of the United States Constitution? A: whether to count enslaved people in the North as part of

What is the meaning of antimonopologeographicationalism?

Instrumental values are ____________________.

In a nuclear reactor, the moderator is: usually made of graphite placed between the fuel rods used to slow down neutrons all of the above none of the above

Which salt most likely forms a colorless solution when it dissolved in water NICi3,FeCi,CuCi, or CaCi

The ___________ expressed the darkest and most ominous aspect of the rural counterattack of the early 1900s. a. Red Scare b. Prohibition movement c. Ku Klux

In a nuclear reactor, the moderator is: usually made of graphite placed between the fuel rods used to slow down neutrons all of the above none of the above