Find the mean of the following set numbers 10,15,25,30,30,50,55,55,60,80
2 answers:
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Answer:
Step-by-step explanation:
In probability
"AND" means to multiply, and
"OR" means to add
Here, we want probability getting a red card OR a 10 OR a queen. So we find each individual probabilities and ADD.
In a standard deck, there is 52 cards.
<u>P(Red):</u>
half the cards are red and half are black, so there are 52/2 = 26 red cards
Hence
P(Red) = 26/52 = 1/2
<u>P(10):</u>
There are 4 suits with each one having 1 "10" card, so there are FOUR 10s in a deck. So,
P(10) = 4/52 = 1/13
<u>P(Queen):</u>
There are 4 suits with each one having 1 Queen. So in 4 suits, there are a total of 4 Queens. So,
P(Queen) = 4/52 = 1/13
P(Red, or, 10, or, Queen) = 1/2 + 1/13 + 1/13 =