Question
The ratio of the salary of K and L is 4:5. The salary of
M is 50% of the sum of salary of K, L, and M. If the salary of M and sum of the salary of K, L, and M remain same. What percentage of the salary must be reduced for L, if Salary of K is increased by 25%.Solution
Let the salary of K and L be 4x and 5x respectively Salary of M = 0.5 x (4x+5x+M) M – 0.5M = 0.5 x 9x M = 9x Increased in salary of K = Rs. X The new salary of K is 5x. Since the sum of salary for three remains same and salary of C remain same 18x = 9x+5x+Y Y = 4x New salary of L is 4x Old salary of L is 5x Percentage of salary reduced = x/5x x 100 = 20%.
In hypothesis testing, what does a low p-value (e.g., p < 0.05) suggest about the null hypothesis?
Which of the following scenarios would benefit most from using time series analysis with seasonal decomposition?
A bank notices unusual activity in a customer’s account, such as multiple large withdrawals in a short period. What is the most appropriate technique...
Which of the following best describes the purpose of data wrangling?
In a machine learning experiment, the company wants to predict future sales based on advertising spend. What is the dependent variable in this scenario?
In hypothesis testing, what does a p-value less than 0.05 typically indicate ?
Which of the following is a key advantage of using box plots over histograms for visualizing data?
In regex, ^abc matches:
A time series dataset shows monthly sales data for a retail store over the last three years. After performing decomposition, you observe that the residu...
Which measure of central tendency is most appropriate when data has extreme outliers?
