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Three coins are tossed simultaneously 350 times. The distribution of various outcomes is listed below :Outcome3 Tails2 Tails1 TailNo TailsNo. Of times65 95 110 80 respevtove;y Compute the probability of getting:(i)At least 1tail(ii) Exactly 3 heads

Sagot :

Answer:

(i) [tex]\frac{27}{35}[/tex]

(ii) [tex]\frac{8}{35}[/tex]

Step-by-step explanation:

Probability refers to chances of occurrence of any event.

Probability is calculated by dividing number of favorable outcomes by total number of possible outcomes.

Total number possible of outcomes = 350

(i)

Number of favorable outcomes = [tex]65+95+110=270[/tex]

Probability [tex]=\frac{270}{350}=\frac{27}{35}[/tex]

(ii)

Exactly 3 heads is equivalent to no tails.

Number of favorable outcomes = [tex]80[/tex]

Probability [tex]=\frac{80}{350}=\frac{8}{35}[/tex]

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