Question

julie has 8 cups of which 2 are indentical. what is the probablity that while placing them in the cupboard,the identical cups are together

Answer 1

Answer:0.14

Step-by-step explanation:now,pairs of identical cups 1 and 5 = 1

Number of cups = 8

Number of times cups 1 and 5 will meet- 1

total number of cups , cup 1 or 5 will meet = total no. of cups - one cup( can be cup 1 or 5 )

= 8 -1 = 7

Hence probability Julia will place cups 5 and 1 together -

P(E) =number of favourable outcomes

-----------------------------------------------

number of trials

= 1/7

=0.1428 (approx)

= 0.14 (approx)

Hence, there is a 0.14 probability Julia will place the identical cups together

Answer 2

The probability of placing two identical cups in a cupboard together is 0.14

GIVEN: Julie has 8 cups of which 2 are identical.
TO FIND:
SOLUTION:

Total number of cups = 8

Number of cups that are identical = 2

Pair of cups that are identical = 1

Number o times they can be placed together = 1

Cups that are identical = 1 and 5

Cup 1 or 5 will meet = total no. of cups - one cup( can be cup 1 or 5 )

= 8 -1

= 7

Hence probability Julie places cups 5 and 1 together =

P(E) =number of favorable outcomes

                  number of trials

P(E) = 1/7

P(E) = 0.1428

P(E) = 0.14 (approx)

Hence, there is a 0.14 probability Julie may place the identical cups together.

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