Binomial Distribution
Is this statement true or false ?
The probability of success (p) is not constant from trial to trial?
False
Is this statement true or false ?
The total area under a normal distribution curve is always equal to 1.
true
Is this statement true or false ?
When you ask for a loan or place an investment, the financial entity is going to charge or pay an interest for it.
true
A basketball player has a 60% chance of making a free throw. If they take 15 shots, what is the expected number of successful shots?
9
A school’s math test scores are normally distributed with a mean of 75 and a standard deviation of 8. A student scores 83 on the test. What is the z-score of the student’s test score?
1
Constanza wants to buy a chair for her new office, which costs $15,000. She will be paying $6,000 instantly and the rest in 6 months. The annual interest rate she is charged with is 14%. How much will she have to pay at the end of the 6 months?
$9,630
A fair coin is tossed 10 times. What is the probability of getting exactly 6 heads?
20.51%
The heights of adult males in a city are normally distributed with a mean of 175 cm and a standard deviation of 10 cm. What is the probability that a randomly selected male is taller than 190 cm?
6.68%
Santiago has an initial capital of $50,000.
He invests 20% of it at a quarterly rate of 6%, and the remaining in a 10% semiannual rate.
What is his earnings interest after 4 months?
$3,466.6