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gayaneshka [121]
2 years ago
7

If the probability that a student in school wears contacts is 0.38 and the probability that a student in the same school has a c

ar is 0.42, what is the probability that a student wears contacts and has a car?
Mathematics
1 answer:
Y_Kistochka [10]2 years ago
4 0

Answer:

Probability [Student wears contacts and has a car] = 0.1596

Step-by-step explanation:

Given:

Probability [Student in school wears contacts] = 0.38

Probability [Student in the same school has a car] = 0.42

Find:

Probability [Student wears contacts and has a car]

Computation:

P[A and B] = P(A) × P(B)

So,

Probability [Student wears contacts and has a car] = Probability [Student in school wears contacts] x Probability [Student in the same school has a car]

Probability [Student wears contacts and has a car] = 0.38 x 0.42

Probability [Student wears contacts and has a car] = 0.1596

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A famous Premier-league footballer was quoted on Match of the Day to have a goal-scoring statistic of 0.36
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Answer:

13a.\  The \ probability\ of \ scoring\ a\  goal\  in\  a\  game\  is\  0.36\\\\b. 3 \ games

14.

a. \ \£90\\b. \ 26 \ weeks\\c. \ \£4,860

15. This is not possible since p(yellow)=0.10 which is less than the stated 0.35

Step-by-step explanation:

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14.-The cost of a GCSE retake is £600 and attracts a 15% deposit

#The 15% equivalent in actual pounds is calculated by multiplying the percentage by the total cost as:

C_g=0.15\times 600\\\\=\£90

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b.#The student pays the balance in a £20 per week scheme,the total number of weeks is calculated as:

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Hence, it takes 26 weeks to clear the balance.

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x-->-∞    -----------------------

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Hope this will helpful.

Thank you.

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