A card is drawn at random from a standard 52-card deck. find the probability that the card is not a queen.
1 answer:
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Answer:
And i fwe look into the normalstandar dtable we can find the desired probability:
And then the The area to the right of z = 1.51 is 0.0655
Step-by-step explanation:
For this case we want to find the following probability:
And for this case we can use the normal standard distribution and the complement rule and we have this:
And i fwe look into the normalstandar dtable we can find the desired probability:
And then the The area to the right of z = 1.51 is 0.0655
Answer: 0.5
Step-by-step explanation:
Given : Adult male heights have a normal probability distribution .
Population mean :
Standard deviation:
Let x be the random variable that represent the heights of adult male.
z-score :
For x=70, we have
Now, by using the standard normal distribution table, we have
The probability that a randomly selected male is more than 70 inches tall :-
Hence, the probability that a randomly selected male is more than 70 inches tall = 0.5