PROBABILITY

A BASKET HAS 12 ROSES AND 8 TULIPS. IF WE PICK TWO FLOWERS AT A TIME WITH A REPLACEMENT FIND THE PROBABILITY OF GETTING A ROSE AND A TULIP.

TEN PIECES OF PAPER NUMBERED FROM 21 TO 30 ARE PLACED IN APOCKET FILE. A PIECE OF PAPER IS PICKED AT RANDOM FROM THE POCKET FILE. FIND THE PROBABILITY OF PICKING A EVEN NUMBER OR DIVISIBLE BY THREE

Two coins are tossed simultaneously. Express the probability of obtaining:

Two heads.

Two coins are tossed simultaneously. Express the probability of obtaining:

Two tails.

Two coins are tossed simultaneously. Express the probability of obtaining:

No tail.

Two coins are tossed simultaneously. Express the probability of obtaining:

A head

Two coins are tossed simultaneously. Express the probability of obtaining:

A head and a tail.

A ROULETTE WHEEL IS DIVIDED AT 10 EQUAL SECTORS LABELLED AS P,O,L,I,T,E,K,N,I AND K . THE WHEEL SPIN TWICE. FIND THE PROBABILITY THAT WHEEL STOPPED AT LETTER I ON THE FIRST SPIN AND THE LETTER K ON THE SECOND SPIN.

TABLE SHOWS TEH NUMBER OF DONUTS IN A BOX. TWO DONUTS ARE SELECTED FROM THE BOX. WITOUT REPLACING THE DONUTS, WHAT IS THE PROBABILITY OF GETTING 1 CHOCOLATE DONUT AND 1 PINK DONUT