Question

tina puts the letters of the word RADAR on pieces of paper and puts the pieces in a bag she draws two letters without looking the first piece of paper is not replaced before the second piece is drawn what is the probability that tina draws an R twice?

Answer 1

The probability that Tina draws an R twice is 1/20.

What is probability?

"Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one".

For the given situation,

The word is RADAR.

Sample space, s = {R,A,D,A,R}

The event is drawing R twice.

Probability of first R is drawn in the bag = 1/5

Probability of second R without replacement is drawn in the bag = 1/4

Thus, P(R twice) = $\frac{1}{5}$ × $\frac{1}{4}$

⇒$\frac{1}{20}$

Hence we can conclude that the probability that Tina draws an R twice is 1/20.

Learn more about probability here

brainly.com/question/13604758

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