Dobby the house-elf has dropped all his socks on the floor in the middle of the night! He has 30 red socks, 22 gold socks and 14
1 answer:
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Answer:
-4/3
Step-by-step explanation:
Use the slope formula:
-4 - 12/ 13 - 1
-16/12
Simplifies to -4/3
Answer:
And we can use the probability mass function and we got:
And replacing we got:
Step-by-step explanation:
Let X the random variable of interest "number of graduates who enroll in college", on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
We want to find the following probability:
And we can use the complement rule and we got:
And we can use the probability mass function and we got:
And replacing we got: