Topic Details (Notes format)

How to Calculate Probability in Bernoulli Trials

Subject: Mathematics

Book: Maths Mastery

Bernoulli trials describe experiments with exactly two outcomes (success or failure) in repeated independent trials. Each trial has probability p of success and q=1–p of failure. The probability of exactly k successes in n trials is given by C(n, k) × p^k × q^(n–k). For example, in 5 coin flips with p=0.5, the probability of exactly 2 heads is C(5,2) × 0.5² × 0.5³=10 × 0.25×0.125=0.3125. Bernoulli trials underpin binomial distributions, crucial for forecasting repeated events in manufacturing (defects), sales leads, and gambling odds. Familiarity fosters robust statistical analysis and real-life predictions.

Practice Questions

What is the slope of a line passing through the points (2, 3) and (4, 7)?

View Question

A sum of money doubles itself in 5 years at simple interest. What is the rate of interest?

View Question

If the perimeter of a square is 40 cm, what is the area of the square?

View Question

If a = 5 and b = 12, what is the length of the hypotenuse of a right triangle?

View Question

What is the HCF of 72 and 120?

View Question

If 2a + b = 10 and a - b = 4, what is the value of a?

View Question

What is the value of x if log(x) + log(4) = log(32)?

View Question

What is the sum of the first 10 positive even numbers?

View Question

If the average of five consecutive odd numbers is 25, what is the largest number?

View Question

If 8x = 512, what is the value of x?

View Question