Alina, Robert, and Makayla are on the student council at their high school.
2 answers:
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Answer:
2/7 = 29% (nearest percent)
Step-by-step explanation:
Calculate the totals and add them to the table:
<u>Probability Formula</u>
Let P(A) = probability that the student is a freshman
Let P(B) = probability that the student is male
Use the given table to calculate the probability that the <u>student is male</u>:
And the probability that the <u>student is a freshman </u><u>and </u><u>male:</u>
To find the probability that the student owns a credit card given that the they are a freshman, use the conditional probability formula:
<u>Conditional Probability Formula</u>
The probability of A given B is:
Substitute the found values into the formula:
Therefore, the probability that the student is a freshman given they are male is 29% (nearest percent).
Learn more about conditional probability here:
At first glance, this problem might be overwhelming so try approaching it slowly by doing these steps:
Step 1: Start by understanding what the problem is really asking.
You might notice that the problem is just a percentage problem, with a twist! If you still don't see it, the problem is just asking what the base should be given a percentage and the amount.
Step 2: Recall the concepts relevant to the question.
We can identify a single formula that will be important in getting the answer:
Step 3: Apply the concept to the context of the problem.
You'll see that we already have the percent from the interest rate which is 0.02% and the amount from the below-minimum-balance fee which is $9.99.
There goes the little twist: you have to manipulate the equation to get the base. Dividing both sides of the equation by the percent we'll have:
Step 4: Evaluate to get the answer to the problem.
We simply substitute the given numbers and evaluate.
Answer: You need $49,950 in the account to cover the Below-Minimum-Balance Fee from your interest.
Step 1: Start by understanding what the problem is really asking.
You might notice that the problem is just a percentage problem, with a twist! If you still don't see it, the problem is just asking what the base should be given a percentage and the amount.
Step 2: Recall the concepts relevant to the question.
We can identify a single formula that will be important in getting the answer:
Step 3: Apply the concept to the context of the problem.
You'll see that we already have the percent from the interest rate which is 0.02% and the amount from the below-minimum-balance fee which is $9.99.
There goes the little twist: you have to manipulate the equation to get the base. Dividing both sides of the equation by the percent we'll have:
Step 4: Evaluate to get the answer to the problem.
We simply substitute the given numbers and evaluate.
Answer: You need $49,950 in the account to cover the Below-Minimum-Balance Fee from your interest.