Riya and Priya tossed a coin twenty times separately and recorded the data. On the basis of the data obtained Riya and Priya calculated the experimental probability of getting a head. Riya says her experimental probability of getting a head is 0.5 while Priya says her experimental probability of getting a head is 0.
Which of the following statements are true regarding the experiment ?

Riya is right

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Priya is right

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Cannot be said

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Both Riya and Priya are wrong

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Solution

The correct options are
A Riya is right
B Priya is right
Total no. of trials = 20

If Riya is right then she must have got head 10 times out of her 20 trials.

If Priya is right then she must have got head 0 times out of her 20 trials.

$Experimental Probability$ = $\frac{no. of trials in which the event happened}{Total no. of trials}$

Experimental Probability (Riya)= $\frac{10}{20}$ = $\frac{1}{2}$
Experimental Probability (Priya)= $\frac{0}{20}$ = $0$

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