Question

Are the inhabitants of a certain village on the Nigerian border speaker the French or English if 64% speak French and 58% speak English what percentage speak

both languages? Two set problems​

Answer 1

Answer: We can use the formulas for conditional probability to calculate the percentage of people in the village who speak both French and English.

P(French and English) = P(French) x P(English|French)

We know that P(French) = 64% and P(English|French) is the probability of someone speaking English given that they already speak French, which is 58%. So we can plug these values into the formula:

P(French and English) = 64% x 58% = 37.12%

Therefore, 37.12% of the inhabitants of the village on the Nigerian border speak both French and English.

Note that this is an estimation since this formula assumes independence and the real probabilities might be different.

Explanation: