In the formula I=P·r·t, what does P stand for? a. Percent: the interest rate expressed as a percentage b. Principal: the amount
2 answers:
Answer:
b. Principal: the amount of money you initially invested
Step-by-step explanation:
We know that,
Simple interest on an amount is calculated by the formula,
Where, P is the principal amount that is invested initially,
r is the rate of interest per period,
t is the number of periods.
Hence, P in the given formula must stand for principal amount.
⇒ Option b would be correct.
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Answer:
0.1348 = 13.48% probability that 3 of them entered a profession closely related to their college major.
Step-by-step explanation:
For each graduate, there are only two possible outcomes. Either they entered a profession closely related to their college major, or they did not. The probability of a graduate entering a profession closely related to their college major is independent of other graduates. This, coupled with the fact that they are chosen with replacement, means that we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
53% reported that they entered a profession closely related to their college major.
This means that
9 of those survey subjects are randomly selected
This means that
What is the probability that 3 of them entered a profession closely related to their college major?
This is P(X = 3).
0.1348 = 13.48% probability that 3 of them entered a profession closely related to their college major.