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The correlation coefficient, which measures the strength and direction of a linear relationship between two variables, ranges from -1 to +1. -1 indicates a perfect negative linear correlation, +1 indicates a perfect positive linear correlation, and 0 indicates no linear correlation. Values outside this range, such as -2 or +2, are not possible.
Three machines P,Q and R were hired by a company for a month. Machine P runs 18 hours for 15 days, machine Q runs 20 hours for 18 days and machine R run...
Working in a shift of 5 hours 39 workers take 12 days to build a stretch of highway. In how many days will 30 workers working 6 hours a day, complete th...
‘A’ alone can complete a work in 15 days. ‘B’ alone can complete the same work in 18 days. If ‘A’ and ‘B’ work together for 6 days, then...
The work can be completed by 'P' boys in 16 days, and by (P + 1) girls in 20 days. Additionally, if 8 boys and 12 girls w...
A and B can complete a task together in 8 days, while B alone takes 16 days to finish it. A began working alone and left after ‘x’ days, after which...
If 18 men working 18 hours a day can make 18 quilts in 18 days, then in how many days 27 men working 12 hours per day will make 27 quilts?
A and B together can complete a work in 20 days. After working together for 8 days, B leaves, and A completes the remaining work in 16 more days. In how...
