Alisha conducted an experiment in which a spinner landed on green 7 times. If the experimental probability of the spinner landing on green is 1/5, how many trials did Alisha perform?
A. 30
B. 35
C. 45
D. 50
I will also give extra points and brainlyest to those who explain their answer.
Answers
Answered by
7
We know,
P(E) = (Number of ‘E’ outcomes)/(Total number of trials) [Empirical probability]
⇒ Total number of trials = (Number of ‘E’ outcomes) / P(E)
We have,
Probability of spinner landing in green = 1/5
Spinner has landed (on green) = 7
∴ Total number of trials = 7 ÷ 1/5 = 7 × 5 = 35. (Answer – B.)
Answered by
1
Answer:
35
Step-by-step explanation:
option b is right ans.....
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