Question
Which of the following is/are correct regarding
correlation?Solution
Relationship between two or more variables called correlation. Where the change in one variable affects a change in other variables. It is a two-way relationship; it is independent of units of the variables. It always lies between –1 to +1.
√1936 + √3025 = ? % of 220
779 + 136 – 334 = 270 + 121 + ?
2350 – 4830 + 9570 + 3350 – 1720 = ?
[∛(3375/19683  )- ∛(125/1728  )  ] ÷ ∛(64/729)  = ? - 3/8Â
25% of 30% of 3/5 of 14500 =?
Simplify: 6(x³ − 2x² + 3x) − (x³ + 2x − 3).
If x - 1/x = 9, then the value of x² + 1/ x² is:
Simplify the following expression:
  (525 +175) ² - (525 – 175) ² / (525 × 175)
95% of 830 - ? % of 2770 = 650
44% of 1900 + 25% of ? = 9000