Answer:
4
Step-by-step explanation:
He should add 4 black blocks because there are a total of 4 other blocks, and in order to have a probability of 50%, the number of black blocks needs to be equal to the total number of the other colored blocks.
Answer:
B.
Step-by-step explanation: The value of a ratio is the quotient of the two quantities in the ratio.
Answer: 6,77,040 different random samples of four accounts are possible.
Step-by-step explanation:
We have to calculate the different random samples of four accounts are possible from the population of 65 bank accounts.
we are using combination formula for calculating various combination of four accounts:
=
Where,
n - total population of bank accounts
r - random samples drawn from the population
=
=
=
=
= 6,77,040 different random samples of four accounts are possible.
Answer:
car C gets the best gas mileage
Step-by-step explanation:
Answer:
37
Step-by-step explanation: