Katie has the following grades on the last 5 math tests: 56, 90, 67, 82, 78. What would her average test score be?
1 answer:
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Answer:
Step-by-step explanation:
The probability of an event to occur is given by a fraction:
Your favourable cases are given by the number of red face cards, that is the Jacks, the Queens and the Kings of Diamonds and Hearts, this number is 6.
The total number of cases is given by the total number of the cards, that is 52.
So the probability of drawing a red face card is:
That is ≃ 0,115... = 11,5%