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

What's the answer to find y when x=9 if y varies directly as the square of x ,and y =100 when x= 5

Your introduction should be no more than _____ percent of your speech time.

Which number sentence shows the correct placement of the decimal point in the product, based on the two factors? 7.98 × 45.67 = 3,644.466 12.3 × 3.8 = 467.4

triangles ABC and DEF are similar. what is the length of side EF

How did a lord most benefit from granting a fief to his vassal

"which chinese dynasty replaced the mongol yuan dynasty in 1368?"

62394 rounded to the nearest tenth

roberto herrera is a system analyst. His annual salary is $132,624. What is his weekly salary?

Memory performance is enhanced if the type of task at encoding matches the type of task at retrieval. this is called

Mattie,Joel,and Oscar each ate 325 calories at lunch each day for 18 days.About how many calories did they eat in all